Abstract:
The present invention provides novel solvated forms of darunavir and processes for their preparation. The present invention also provides novel processes for the preparation of darunavir amorphous form and pharmaceutical compositions comprising it. Thus, for example, darunavir 2-methyl-2-butanol solvate was dissolved in methylene dichloride, distilled under vacuum at 45° C. to obtain a residue, cyclohexane was added to the residue and stirred for 30 hours at 20 to 25° C., and the separated solid was filtered, washed with cyclohexane and dried under vacuum at 50° C. for 12 hours to yield darunavir amorphous form.
Abstract:
The present invention relates to pharmaceutical compositions comprising rufmamide premix and one or more pharmaceutically acceptable excipients and methods of preparing the same.
Abstract:
Stable pharmaceutical compositions of fesoterodine or its pharmaceutically acceptable salt thereof and process for preparing the same. In a first embodiment, a stable pharmaceutical composition is provided comprising fesoterodine fumarate, glyceryl behenate and a stabilizer. The stable pharmaceutical tablet composition may further comprise i) fesoterodine fumarate in an 5 amount of 1% to 5% by weight, ii) glyceryl behenate in an amount of 1% to 8% by weight, iii) pregelatinized starch in an amount of 30% to 50% by weight and iv) a stabilizer in an amount of 0.1% to 10% by weight based on total weight of the composition.
Abstract:
The present invention provides a novel process for the preparation of rilpivirine. The present invention also provides a novel process for the preparation of rilpivirine hydrochloride. The present invention further provides a rilpivirine hydrochloride monohydrate, process for its preparation and pharmaceutical compositions comprising it.
Abstract:
The present invention provides a novel and stable hydrated form of erlotinib free base, and a process for its preparation thereof. The present invention also provides a process for preparation of erlotinib hydrochloride crystalline polymorph a substantially free of polymorph B. The present invention further relates to erlotinib hydrochloride crystalline particles having mean particle size (D50) ranging from about 4 μm to 15 μm and 90 volume-% of the particles (D90) ranging from about 14 μm to 30 μm, to the methods for the manufacture of said crystalline particles, and to pharmaceutical compositions comprising said crystalline particles.
Abstract:
The present invention relates to a process for preparing Lomitapide or its pharmaceutically acceptable salt thereof having high purity with acceptable levels of impurities.
Abstract:
The present invention provides a novel processes for preparation of methyl 3-(benzyloxy)-5-(2,4-difluorobenzylcarbamoyl)-4-oxo-1-(2-oxoethyl)-1,4-dihydropyiridine-2-carboxylate using novel intermediates.
Abstract:
The present invention provides a novel processes for preparation of methyl 3-(benzyloxy)-5-(2,4-difluorobenzylcarbamoyl)-4-oxo-1-(2-oxoethyl)-1,4-dihydropyiridine-2-carboxylate using novel intermediates.
Abstract:
The present invention provides a novel process for the purification of alpha-propargylhomoterephthalic acid dimethyl ester substantially free of homoterephthalic acid dimethyl ester. The present invention also provides a novel process for the purification of pralatrexate.
Abstract:
The invention relates to novel betulinic acid derivatives and related compounds, and pharmaceutical compositions useful for the therapeutic treatment of viral diseases and particularly HIV mediated diseases.