01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Active chemical ingredients for use in pharmaceutical
substance manufacture. Scientific and technological services, research, development
and innovation services; scientific laboratory services for
analysis of chemicals, pharmaceuticals; technical research
services regarding chemicals, pharmaceuticals.
2.
PROCESS FOR PREPARING OPTICALLY ACTIVE SECONDARY AMINES AND THEIR USE AS INTERMEDIATES
LL1 44 alkyl, preferably R1144 alkyl, preferably R2nn-propyl and the use of the obtained optically amine compounds of formula (IV) for the preparation of rotigotine.
C07D 205/04 - Composés hétérocycliques comportant des cycles à quatre chaînons ne contenant qu'un atome d'azote comme unique hétéro-atome du cycle non condensés avec d'autres cycles ne comportant pas de liaison double entre chaînons cycliques ou entre chaînons cycliques et chaînons non cycliques
C07B 57/00 - Séparation de composés organiques optiquement actifs
C07C 215/48 - Composés contenant des groupes amino et hydroxy liés au même squelette carboné ayant des groupes hydroxy liés à des atomes de carbone d'au moins un cycle aromatique à six chaînons et des groupes amino liés à des atomes de carbone acycliques ou à des atomes de carbone de cycles autres que des cycles aromatiques à six chaînons du même squelette carboné avec des groupes amino reliés au cycle aromatique à six chaînons, ou au système cyclique condensé contenant ce cycle par l'intermédiaire de chaînes carbonées qui ne sont pas substituées de plus par des groupes hydroxy
C07C 269/00 - Préparation de dérivés d'acide carbamique, c.-à-d. de composés contenant l'un des groupes l'atome d'azote ne faisant pas partie de groupes nitro ou nitroso
C07C 269/06 - Préparation de dérivés d'acide carbamique, c.-à-d. de composés contenant l'un des groupes l'atome d'azote ne faisant pas partie de groupes nitro ou nitroso par des réactions n'impliquant pas la formation de groupes carbamate
C07C 271/18 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'oxygène liés par des liaisons doubles
C07C 271/12 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Active chemical ingredients for use in the manufacture of pharmaceuticals. Scientific and technological services, research, development and innovation; Scientific laboratory services for analysing chemicals and pharmaceuticals; technical surveying in relation to the following goods: Chemical products, Pharmaceutical goods.
6.
PROCESS FOR PREPARING DAPRODUSTAT AND COCRYSTALS THEREOF
The present invention provides crystal forms of daprodustat, which are cocrystals comprising daprodustat free acid and a daprodustat pharmaceutically acceptable metal salt, wherein the metal salt is an alkali metal salt. The invention also refers to processes for the preparation of said cocrystals of daprodustat in good yield and high purity suitable for industrial scale, to pharmaceutical compositions containing them and to their use in therapy. The present invention also provides an efficient process for the preparation of daprodustat or a pharmaceutically or veterinary acceptable salt thereof in good yield and high purity suitable for industrial scale applications which involves improved conditions for the preparation of key intermediates.
It is provided a method for the purification of vilanterol trifenatate of formula (I)
It is provided a method for the purification of vilanterol trifenatate of formula (I)
It is provided a method for the purification of vilanterol trifenatate of formula (I)
comprising crystallizing vilanterol trifenatate from a ketone solvent selected from the group consisting of methyl ethyl ketone (MEK), methyl isobutyl ketone (MIK), ethyl isopropyl ketone, methyl isopropyl ketone, 3-methyl-2-pentanone, and a mixture thereof.
C07C 217/48 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant non saturé et contenant des cycles
8.
PROCESS FOR PREPARING PYRIDINOYLPIPERIDINES 5-HT1F AGONISTS AND SALTS THEREOF
The present invention provides an efficient and environmentally friendly process suitable for industrial scale application for the preparation of pyridinoylpiperidines as 5-HT1F agonists and salts thereof, in particular 2,4,6-trifluoro-N-[6-(l-methylpiperidine-4-carbonyl)pyridine-2-yl]benzamide or a pharmaceutically acceptable acid addition salt thereof, preferably the hemisuccinate salt, in good yield and high purity. The present invention also provides crystalline acid addition salts of 2,4,6-trifluoro-N-[6-(l-methylpiperidine-4-carbonyl)pyridine-2-yl]benzamide suitable for purification at industrial scale.
C07D 401/06 - Composés hétérocycliques contenant plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, au moins un cycle étant un cycle à six chaînons avec un unique atome d'azote contenant deux hétérocycles liés par une chaîne carbonée contenant uniquement des atomes de carbone aliphatiques
A61K 31/444 - Pyridines non condenséesLeurs dérivés hydrogénés contenant d'autres systèmes hétérocycliques contenant un cycle à six chaînons avec l'azote comme hétéro-atome du cycle, p. ex. amrinone
The present invention relates to an improved process for the preparation of 1-deoxy-1-methylamino-D-glucitol 2-(3,5-dichlorophenyl)-6-benzoxazolecarboxylate, also known as tafamidis meglumine. The process of the present invention is particularly suitable for industrial scale manufacture of tafamidis meglumine with excellent purity and high yields.
Method for the purification of vilanterol trifenatate It is provided a method for the purification of vilanterol trifenatate of formula (I) comprising crystallizing vilanterol trifenatate from a ketone solvent selected from the group consisting of methyl ethyl ketone (MEK), methyl isobutyl ketone (MIK), ethyl isopropyl ketone, methyl isopropyl ketone, 3-methyl-2-pentanone, and a mixture thereof.
C07C 217/08 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant acyclique et saturé ayant un seul groupe hydroxy éthérifié et un seul groupe amino liés au squelette carboné, qui n'est pas substitué par ailleurs l'atome d'oxygène du groupe hydroxy éthérifié étant lié de plus à un atome de carbone acyclique
C07C 57/38 - Composés non saturés comportant des groupes carboxyle liés à des atomes de carbone acycliques contenant des cycles aromatiques à six chaînons polycycliques
11.
METHOD FOR THE PURIFICATION OF VILANTEROL TRIFENATATE
Method for the purification of vilanterol trifenatate It is provided a method for the purification of vilanterol trifenatate of formula (I) comprising crystallizing vilanterol trifenatate from a ketone solvent selected from the group consisting of methyl ethyl ketone (MEK), methyl isobutyl ketone (MIK), ethyl isopropyl ketone, methyl isopropyl ketone, 3-methyl-2-pentanone, and a mixture thereof.
C07C 57/38 - Composés non saturés comportant des groupes carboxyle liés à des atomes de carbone acycliques contenant des cycles aromatiques à six chaînons polycycliques
C07C 217/08 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant acyclique et saturé ayant un seul groupe hydroxy éthérifié et un seul groupe amino liés au squelette carboné, qui n'est pas substitué par ailleurs l'atome d'oxygène du groupe hydroxy éthérifié étant lié de plus à un atome de carbone acyclique
12.
PROCESS FOR PREPARING 1-DEOXY-1-METHYLAMINO-D-GLUCITOL 2-(3,5-DICHLOROPHENYL)-6-BENZOXAZOLECARBOXYLATE
The present invention relates to an improved process for the preparation of 1-deoxy-1-methylamino-D- glucitol 2-(3,5-dichlorophenyl)-6-benzoxazolecarboxylate, also known as tafamidis meglumine. The process of the present invention is particularly suitable for industrial scale manufacture of tafamidis meglumine with excellent purity and high yields.
The present invention provides an improved process for the manufacture (R)-6-hydroxy-8-[1-hydroxy-2-[2-(4-methoxyphenyl)-1,1-dimethyl-ethylamino-ethyl]-2H-1,4-benzoxazin-3(4H)-one, in high purity and high yield, through the use of 1,1-dimethyl-2-(4-methoxyphenyl)ethyl amine L-tartrate salt, 1,1-dimethyl-2-(4-methoxyphenyl)ethyl amine maletate salt or the camphorsulfonate salt of intermediate (4). The invention also relates to said salts, to processes for preparing them and to their use for the manufacture of (R)-6-hydroxy-8-[1-hydroxy-2-[2-(4-methoxyphenyl)-1,1-dimethyl-ethylamino-ethyl]-2H-1,4-benzoxazin-3(4H)-one or a pharmaceutically acceptable salt thereof.
The present invention provides a new process for stabilizing the particle size of micronized glycopyrronium salt (such as glycopyrronium bromide) which yields a micronized product exhibiting improved chemical and polymorphic stability even after prolonged storage. The invention also relates to compositions comprising said stabilized glycopyrronium salt (such as glycopyrronium bromide) and to dry powder inhaler devices and capsules or blisters comprising the stabilized glycopyrronium salt (such as glycopyrronium bromide). The glycopyrronium salt (such as glycopyrronium bromide) or compositions of the invention may be used as a medicament, for instance in the treatment of asthma, chronic obstructive pulmonary disease or cystic fibrosis or related diseases.
A61J 3/02 - Dispositifs ou procédés spécialement conçus pour donner à des produits pharmaceutiques une forme physique déterminée ou une forme propre à leur administration la forme de poudres
A61K 9/00 - Préparations médicinales caractérisées par un aspect particulier
A61K 9/14 - Préparations médicinales caractérisées par un aspect particulier à l'état particulaire, p. ex. poudres
A61K 31/40 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à cinq chaînons avec un azote comme seul hétéro-atome d'un cycle, p. ex. sulpiride, succinimide, tolmétine, buflomédil
A61K 31/4015 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à cinq chaînons avec un azote comme seul hétéro-atome d'un cycle, p. ex. sulpiride, succinimide, tolmétine, buflomédil ayant des groupes oxo liés directement à l'hétérocycle, p. ex. piracétam, éthosuximide
A61K 45/06 - Mélanges d'ingrédients actifs sans caractérisation chimique, p. ex. composés antiphlogistiques et pour le cœur
15.
IMPROVED PROCESS FOR THE MANUFACTURE OF R-6-HYDROXY-8-[1-HYDROXY-2-[2-(4-METHOXYPHENYL)-1,1-DIMETHYLETHYLAMINOETHYL]-2H-1,4-BENZOXAZIN-3(4H)-ONE HYDROCHLORIDE
The present invention provides an improved process for the manufacture (R)-6- hydroxy-8-[1-hydroxy-2-[2-(4-methoxyphenyl)-1,1-dimethyl-ethylamino-ethyl]-2H-1,4- benzoxazin-3(4H)-one, in high purity and high yield, through the use of 1,1-dimethyl-2- (4-methoxyphenyl)ethyl amine L-tartrate salt, 1,1-dimethyl-2-(4-methoxyphenyl)ethyl amine maletate salt or the camphorsulfonate salt of intermediate (4). The invention also relates to sais salts, to processes for preparing them and to their use for the manufacture of (R)-6-hydroxy-8-[1-hydroxy-2-[2-(4-methoxyphenyl)-1,1-dimethyl- ethylamino-ethyl]-2H-1,4-benzoxazin-3(4H)-one or a pharmaceutically acceptable salt thereof.
C07C 309/07 - Acides sulfoniques ayant des groupes sulfo liés à des atomes de carbone acycliques d'un squelette carboné acyclique saturé contenant des atomes d'oxygène liés au squelette carboné
The present invention provides a new process for stabilizing the particle size of micronized glycopyrronium salt (such as glycopyrronium bromide)which yields a micronized product exhibiting improved chemical and polymorphic stability even after prolonged storage. The invention also relates to compositions comprising said stabilized glycopyrronium salt (such as glycopyrronium bromide) and to dry powder inhaler devices and capsules or blisters comprising the stabilized glycopyrronium salt (such as glycopyrronium bromide). The glycopyrronium salt (such as glycopyrronium bromide) or compositions of the invention may be used as a medicament, for instance in the treatment of asthma, chronic obstructive pulmonary disease or cystic fibrosis or related diseases.
A61K 9/14 - Préparations médicinales caractérisées par un aspect particulier à l'état particulaire, p. ex. poudres
A61K 31/40 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à cinq chaînons avec un azote comme seul hétéro-atome d'un cycle, p. ex. sulpiride, succinimide, tolmétine, buflomédil
17.
Process for preparing (3RS)-3-[(2SR)-(2-cyclopentyl-2-hydroxy-2-phenylacetyl)oxy]-1,1-dimethylpyrrolidinium bromide
The present invention relates to an efficient and environmentally friendly process for preparing (3RS)-3-[(2SR)-(2-cyclopentyl-2-hydroxy-2-phenylacetyl)oxy]-1,1-dimethylpyrrolidinium bromide with high yield and purity suitable for industrial scale applications.
A monoclinic crystalline form of asenapine maleate is described, which is characterized in that it is not micronised and has a particle size distribution characterized by a d90 of 40 μm or less. A process for the preparation of a monoclinic crystalline form of asenapine maleate is also described, the process comprising the following steps: a) providing a mixture of monoclinic asenapine maleate and an organic solvent which, under the conditions of the process, acts as an antisolvent; b) stirring the mixture at a temperature between 15 and 60° C.; and c) collecting the crystals, wherein the organic solvent is selected from alcohols, ketones, ethers, esters, hydrocarbons or mixtures thereof.
C07D 491/044 - Systèmes condensés en ortho avec un seul atome d'oxygène comme hétéro-atome du cycle contenant de l'oxygène
A61K 31/407 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à cinq chaînons avec un azote comme seul hétéro-atome d'un cycle, p. ex. sulpiride, succinimide, tolmétine, buflomédil condensés avec des systèmes hétérocycliques, p. ex. kétorolac, physostigmine
19.
Polymorphic form of a long-acting beta-2 adrenoceptor agonist
New polymorphic form of a long-acting beta-2 adrenoceptor agonist A new polymorphic form of arformoterol tartrate, designated as form D, is provided and which is characterized by at least one of the following: (i) a powder X-ray diffraction pattern having peaks at approximately 6.8, 13.3, 13.6, 3.8, 14.1, 18.2, 18.7, 20.0±0.2 degrees two theta; or (ii) a DSC thermogram showing an endothermic peak with an onset at approximately 19-120° C., and a maximum at approximately 129-131° C., followed by an exothermic peak with a maximum at approximately 137-138° C.; wherein the DSC thermogram of form D has a further endothermic peak with an onset at approximately 168-170° C.1 Processes for preparing the new polymorphic form, uses thereof and intermediates for the preparation thereof, are also provided.
C07C 233/43 - Amides d'acides carboxyliques ayant des atomes de carbone de groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques ayant l'atome d'azote d'au moins un des groupes carboxamide lié à un atome de carbone d'un radical hydrocarboné substitué par des groupes amino avec le radical hydrocarboné substitué lié à l'atome d'azote du groupe carboxamide par un atome de carbone d'un cycle aromatique à six chaînons ayant l'atome de carbone du groupe carboxamide lié à un atome d'hydrogène ou à un atome de carbone d'un squelette carboné saturé
20.
Stable micronised monoclin form of asenapine maleate and its synthesis
A stable micronized monoclinic form of asenapine maleate is described, which comprises 5% by weight or less of orthorhombic form or any other crystalline form of asenapine maleate, wherein the asenapine maleate has a particle size distribution characterized by a d90 equal to or below 40 μm. Processes for preparing the stable micronized monoclinic form of asenapine maleate are also described. Formula (I).
The present invention provides a process for obtaining dronedarone or salts thereof characterized in that in an organic phase comprising one or more non-polar solvents, 5-amino-3-[4-(3-di-n-butylaminopropoxy)benzoyl]-2-n-butyl-benzofuran is reacted with methane sulfonyl chloride without the addition of a base. The invention also provides a process for obtaining intermediates of dronedarone environmentally friendly and industrially viable.
The present invention is directed to novel compounds of formula (I) as well as to the process for their preparation. Novel compounds of formula (I) can be converted into asenapine through an efficient process. The invention also relates to novel intermediates used in this process and their use in the preparation of compounds of formula (I).
C07D 491/044 - Systèmes condensés en ortho avec un seul atome d'oxygène comme hétéro-atome du cycle contenant de l'oxygène
C07D 313/14 - Cycles à sept chaînons condensés avec des carbocycles ou avec des systèmes carbocycliques condensés avec deux cycles à six chaînons condensés en [b, f]
The present invention is directed to novel compounds of formula (I) as well as to the process for their preparation. Novel compounds of formula (I) can be converted into asenapine through an efficient process. The invention also relates to novel intermediates used in this process and their use in the preparation of compounds of formula (I).
C07D 313/14 - Cycles à sept chaînons condensés avec des carbocycles ou avec des systèmes carbocycliques condensés avec deux cycles à six chaînons condensés en [b, f]
The invention relates to a method and compounds for the preparation of clevidipine butyrate, a very short acting hypertensive calcium antagonist, as well as the synthesis of these compounds useful for the preparation of clevidipine (also known as clevidipine butyrate). Moreover the invention also discloses polymorphic forms of clevidipine butyrate, useful for the preparation of pharmaceutical compositions, and processes to prepare them.
The present invention relates to an improved process for obtaining Paliperidone, I, comprising alkylating compound VI, or a salt thereof, with compound V, or a salt thereof, using a base selected from triethylamine or diisopropylethylamine and, optionally, a solvent. Moreover, the invention relies on the preparation of intermediates used in such process.
C07D 239/70 - Composés hétérocycliques contenant des cycles diazine-1, 3 ou diazine-1, 3 hydrogéné condensés avec des carbocycles ou avec des systèmes carbocycliques
The present invention refers to an improved process for the preparation of telmisartan or a pharmaceutical acceptable salt thereof through hydrolysis compounds of formula general (I) wherein R is tert-butyl ester (Ia) or salts thereof. Preferably, the invention discloses the preparation of telmisartan through hydrolysis of novel organic salts of compounds of formula (I), particularly wherein R is tert-butyl ester (Ia). The invention also relates to a process for the preparation of these novel organic salts, in particular wherein R is tert-butyl ester (Ia) and its use in the preparation of telmisartan.
Relates to a new polymorphic form of Granisetron base, Form I, to methods for obtaining thereof, to the method for obtaining Granisetron.HCl and its use for preparing pharmaceutical formulations. The Form I is characterized by the X-ray powder diffractogram shown in FIG. 1. Included in summarised form are the methods and solvents for obtaining the Form I: 1) Evaporation of hexane at atmospheric pressure; 2) Evaporation of acetone at atmospheric pressure; 3) Evaporation of toluene at atmospheric pressure; 4) Cooling of a saturated solution of diethyl ether to reflux temperature; 5) Evaporation of 2-propanol atmospheric pressure; 6) Evaporation of tetrahydrofuran at atmospheric pressure; and 7) Cooling of a saturated solution of acetonitrile to reflux temperature.
A61K 31/439 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à six chaînons avec un azote comme seul hétéro-atome d'un cycle le cycle formant une partie d'un système cyclique ponté, p. ex. quinuclidine
C07D 451/14 - Composés hétérocycliques contenant des systèmes cycliques aza-8 bicyclo [3.2.1] octane, aza-9 bicyclo [3.3.1] nonane ou oxa-3 aza-9 tricyclo [3.3.1.02,4] nonane, p. ex. alcaloïdes du tropane ou du granatane, scopolamineLeurs acétals cycliques contenant des systèmes cycliques aza-9 bicyclo [3.3.1] nonane, p. ex. granatane, aza-2 adamantaneLeurs acétals cycliques
A61P 1/08 - Médicaments pour le traitement des troubles du tractus alimentaire ou de l'appareil digestif des nausées, du mal des transports ou des vertigesAntiémétiques
The present invention provides a novel process for obtaining Bosentan, with few synthesis steps, by coupling the intermediate pyrimidine derivative of formula I with the sulfonamide derivative of formula II. The use of said process prevents the protection of the hydroxyl group of the sulfonamide II and thus is of considerable interest for obtaining Bosentan in a large industrial scale. The invention also refers to the intermediates of formula II and to a process for its production.
C07D 403/04 - Composés hétérocycliques contenant plusieurs hétérocycles, comportant des atomes d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
29.
Method for preparing a mixed solvate of olanzapine
An improved method is provided for preparing a mixed solvate of olanzapine/water/tetrahydrofuran in a proportion of 1:1:1/2. Said improvement is characterised in that said mixed solvate is basically prepared by means of methylation of the N-desmethylolanzapine with dimethyl sulphate, using tetrahydrofuran and water as solvents.
The present invention relates to micronisable salmeterol xinafoate polymorph I characterized by a mean particle size between 5 and 15 μm and a bulk density between 0.1 and 0.2 g/mL, to a method for its preparation and to its use in the preparation of micronised salmeterol xinafoate.
The present invention relates to an improved process for obtaining Paliperidone, I, comprising alkylating compound VI, or a salt thereof, with compound V, or a salt thereof, using a base selected from triethylamine or diisopropylethylamine and, optionally, a solvent. Moreover, the invention relies on the preparation of intermediates used in such process.
The present invention refers to the novel cyclopropylamine salt of montelukast in crystalline form and its use in the process for the preparation of highly pure amorphous montelukast sodium.
Relates to a new polymorphic form of Granisetron base, Form I, to methods for obtaining thereof, to the method for obtaining Granisetron • HCl and its use for preparing pharmaceutical formulations. The Form I is characterized by the X-ray powder dif f ractogram shown in Figure 1. Included in summarised form are the methods and solvents for obtaining the Form I: 1) Evaporation of hexane at atmospheric pressure; 2) Evaporation of acetone at atmospheric pressure; 3) Evaporation of toluene at atmospheric pressure; 4) Cooling of a saturated solution of diethyl ether to reflux temperature; 5) Evaporation of 2-propanol at atmospheric pressure; 6) Evaporation of tetrahydrofuran at atmospheric pressure; and 7) Cooling of a saturated solution of acetonitrile to reflux temperature.
C07D 451/14 - Composés hétérocycliques contenant des systèmes cycliques aza-8 bicyclo [3.2.1] octane, aza-9 bicyclo [3.3.1] nonane ou oxa-3 aza-9 tricyclo [3.3.1.02,4] nonane, p. ex. alcaloïdes du tropane ou du granatane, scopolamineLeurs acétals cycliques contenant des systèmes cycliques aza-9 bicyclo [3.3.1] nonane, p. ex. granatane, aza-2 adamantaneLeurs acétals cycliques
A61K 31/439 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à six chaînons avec un azote comme seul hétéro-atome d'un cycle le cycle formant une partie d'un système cyclique ponté, p. ex. quinuclidine
A61P 1/08 - Médicaments pour le traitement des troubles du tractus alimentaire ou de l'appareil digestif des nausées, du mal des transports ou des vertigesAntiémétiques
34.
PROCESS FOR OBTAINING A VALSARTAN SALT USEFUL FOR OBTAINING VALSARTAN
The invention relates to a new salt of Valsartan, in particular to the high-purity dilithium salt of Valsartan, its polymorphs and solvates or hydrates thereof, useful for obtaining Valsartan with a high yield. The process for obtaining the dilithium salt of Valsartan (I) comprises i) Coupling of the intermediate (II) with the 2-(1H-tetrazole-5-il)-phenylboronic acid of formula (III), wherein said coupling takes place in the presence of a lithium base, and a mixture of water and water-miscible organic solvent and a palladium catalyst, to give the dilithium salt of Valsartan of formula (I).
A61K 31/41 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p. ex. guanéthidine ou rifamycines ayant des cycles à cinq chaînons avec plusieurs hétéro-atomes cycliques, l'un au moins étant l'azote, p. ex. tétrazole
The present invention refers to a process for the synthesis of (1-{1-(R)-(E)-{3-[2-(7-chloro-quinolin-2-yl)-vinyl]-phenyl}-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulf anylmethyl}-cyclopropyl)-acetic acid or its salts, comprising the reaction between 7-Chloro-2-vinyl-quinoline and a compound of formula (I) wherein X is a halogen atom or a group of formula -OSO2R, wherein R is selected from the group consisting of CF3, tolyl, methyl and F; in the presence of a palladium based catalyst. The invention is also directed to intermediates compounds of the process.
An improved method is provided for preparing a mixed solvate of olanzapine/water/tetrahydrofuran in a proportion of 1:1:1/2. Said improvement is characterised in that said mixed solvate is basically prepared by means of methylation of the N-desmethylolanzapine with dimethyl sulphate, using tetrahydrofuran and water as solvents.
The invention provides a method for obtaining the intermediate (II), useful for manufacturing Valsartan and a drug directed to a treatment of arterial hypertension or heart failure. The process comprises a) Imination of the aldehyde group of a compound (VII) by L-Valine (IV) salts with organic or inorganic bases and a polar solvent or water, where X means halogen or an-OSO2R group, where R is CF3, tolyl, methyl or F; to give an imine-type compound (VIII), where B+ is the protonated form of an organic base or an alkaline cation; b) Reduction of the imine group of the compound (VIII) followed by acidification, to give the compound (VI); and c) N-Acylation of the compound (VI) with valeryl chloride to give the compound (II). Steps a) and b) can be performed in a 'one pot' reaction.
