摘要:
Substantially pure salts of febuxostat of Formula (IA): wherein Y is Na+, K+, Li+, Mg2+, Ca2+, Zn2+, Ba2+, Sr2+, choline, epolamine and N+(R)4 and processes for preparation thereof are disclosed.
摘要:
The invention discloses processes for the preparation of rivaroxaban and its pharmaceutically acceptable salts, solvates, and hydrates thereof. The invention also relates to novel intermediates for the preparation of rivaroxaban.
摘要:
The invention relates to improved process for the preparation of fesoterodine and its pharmaceutically acceptable salt, specifically fesoterodine fumarate of formula (1). The invention relates to solid state forms of a novel salt of fesoterodine and process for the preparation thereof. The invention also relates to highly pure fesoterodine fumarate substantially free of impurity X at RRT 1.37. The invention also provides solid particles of pure fesoterodine fumarate wherein 90 volume-percent of the particles (D90) have a size of higher than 200 microns.
摘要:
The invention relates to improved process for the preparation of fesoterodine and its pharmaceutically acceptable salt, specifically fesoterodine fumarate of formula (1). The invention relates to solid state forms of a novel salt of fesoterodine and process for the preparation thereof. The invention also relates to highly pure fesoterodine fumarate substantially free of impurity X at RRT 1.37. The invention also provides solid particles of pure fesoterodine fumarate wherein 90 volume-percent of the particles (D90) have a size of higher than 200 microns.
摘要:
A compound of Formula (1), is disclosed wherein P1 and P2 are alcohol protecting groups or 1,3-diol protecting group, R is selected from: wherein R4a is selected from alkyl, aryl, arylalkyl and cycloalkyl, Rc is selected from H, alkyl, aryl, alkaoxy, haloalkyl, monohaloalkyloxy, and dihaloalkyloxy, Rd is selected from alkyl, aryl, arylalkyl, CF3, halo and NO2 and X is selected from O, N—H, N-alkyl and S, Ra and Rb are same or different and each represents hydrogen, an alkyl group of 1 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, or an aralkyl group of 7 to 12 carbon atoms.
摘要:
A compound of Formula (1), is disclosed wherein P1 and P2 are alcohol protecting groups or 1,3-diol protecting group, R is selected from: wherein R4a is selected from alkyl, aryl, arylalkyl and cycloalkyl, Rc is selected from H, alkyl, aryl, alkaoxy, haloalkyl, monohaloalkyloxy, and dihaloalkyloxy, Rd is selected from alkyl, aryl, arylalkyl, CF3, halo and NO2 and X is selected from O, N—H, N-alkyl and S, Ra and Rb are same or different and each represents hydrogen, an alkyl group of 1 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, or an aralkyl group of 7 to 12 carbon atoms.
摘要:
The invention provides the process for the preparation of pitavastatin and its pharmaceutically acceptable salts thereof. In particular, the invention provides a process for the preparation of stable pitavastatin calcium in crystalline form having water content less than 5% wt/wt. The present invention also provides stable crystalline form of pitavastatin calcium substantially free from crystal Form-A and use thereof for pharmaceutical compositions.
摘要:
The present invention relates the process for preparation of stable polymorph of aripiprazole and in particular the present invention is related to an improved process for the preparation of crystalline anhydrous aripiprazole and its hydrochloride salt.
摘要:
The invention provides the process for the preparation of pitavastatin and its pharmaceutically acceptable salts thereof. In particular, the invention provides a process for the preparation of stable pitavastatin calcium in crystalline form having water content less than 5% wt/wt. The present invention also provides stable crystalline form of pitavastatin calcium substantially free from crystal Form-A and use thereof for pharmaceutical compositions.