Immediate-release formulations for oral administration of a thrombin receptor antagonist are provided. Certain formulations of higher API loading demonstrate sufficient moisture uptake after storage at stressed conditions to retard dissolution. The formulations of the present invention incorporate either lower API loading or elevated disintegrant-to-API ratios, found necessary to achieve disintegration rates required for immediate-release performance.
A61K 31/4418 - Non-condensed pyridinesHydrogenated derivatives thereof having a carbocyclic ring directly attached to the heterocyclic ring, e.g. cyproheptadine
A61K 31/444 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. amrinone
A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
2.
PROCESS FOR THE PREPARATION OF PHOSPHONATE COMPOUNDS USEFUL IN THE PREPARATION OF HIMBACINE ANALOGS
This application discloses a process for the preparation of Compound 16(see compound 16)The compound is useful for preparing himbacine analogs that are thrombin receptor antagonists.
C07C 69/732 - Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids of unsaturated hydroxy carboxylic acids
C07C 205/44 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by —CHO groups
C07C 205/56 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups bound to carbon atoms of six-membered aromatic rings and carboxyl groups bound to acyclic carbon atoms of the carbon skeleton
C07C 235/28 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and unsaturated
C07C 309/08 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing oxygen atoms bound to the carbon skeleton containing hydroxy groups bound to the carbon skeleton
C07D 235/12 - Radicals substituted by oxygen atoms
C07D 263/56 - BenzoxazolesHydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
C07D 277/64 - Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
C07D 405/04 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
C07D 413/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring- member bond
C07D 417/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
C07F 7/18 - Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
This application discloses a process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following.(see above formula)
C07C 69/606 - Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom having only carbon-to-carbon triple bonds as unsaturation in the carboxylic acid moiety
C07C 205/44 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by —CHO groups
C07C 205/55 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups or carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings of the carbon skeleton
C07C 235/28 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and unsaturated
C07C 309/08 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing oxygen atoms bound to the carbon skeleton containing hydroxy groups bound to the carbon skeleton
C07D 235/12 - Radicals substituted by oxygen atoms
C07D 263/56 - BenzoxazolesHydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
C07D 277/64 - Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
C07D 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 413/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
C07D 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
patents