摘要:
A process for the preparation of Irbesartan or a pharmaceutically acceptable salt thereof comprising the step of coupling the 1-pentanamidocyclapentanecarboxamide of formula (V) with 4'-substituted methyl biphenyl-2-carbonitrile or 1-(4'-substituted methyl biphenyl-2-yl)-1H-tetrazole wherein tetrazole can be protected or unprotected to obtain the N-[(2'-cyanobiphenyl-4-yl)methyl]-1-pentanamidocyclopentanecarboxamide or N -[1-({[2'-(1 H- tetrazol-1-yl)biphenyl-4-yl]methylamino)methyl)cydopentyl]pentanamide wherein tetrazole can be protected or unprotected that is further processed to Irbesartan or a pharmaceutical acceptable salt thereof.
摘要:
The present invention relates to a process for preparing 2-(2-pyridinylmethylsulfinyl)-1 H -benzimidazoles by oxidizing a thioether precursor in the presence of trifluoroethanol.
摘要:
The invention relates to a process for the preparation of substantially optically pure or optically enriched clopidogrel or a pharmaceutically acceptable salt or solvate thereof. The invention also relates to a process for the preparation of a pharmaceutical formulation comprising substantially optically pure clopidogrel, or a pharmaceutically acceptable salt or solvate thereof, in combination with at least one pharmaceutically acceptable carrier.
摘要:
The present invention relates to a process for the preparation of substantially optically pure omeprazole, or a pharmaceutically acceptable salt or solvate thereof. The invention also relates to a process for preparing a pharmaceutical composition comprising the substantially optically pure omeprazole or the pharmaceutically acceptable salt or solvate thereof and to intermediates useful for the preparation of optically pure omeprazole.
摘要:
The present invention describes a novel process for the preparation of marbofloxacin and intermediate thereof comprising reaction of ammonium hydroxide of formula III, NR 1 R 2 R 3 R 4 wherein R 1 , R 2 , R 3 and R 4 are independently selected from the group of H, alkyl, alkylaryl, aryl and/or heteroaryl, with compound of formula II,
wherein R is selected from H, alkyl, arylalkyl, alkali metal cation, , NH 4 cation, NR 1 R 2 R 3 R 4 cation; X is halogen, such as chloro, bromo, fluoro, piperazinyl, which may be substituted or unsubstituted, and R' is selected from H, formyl or COOAlkyl.
摘要:
The present invention describes a novel process for the preparation of marbofloxacin and intermediate thereof comprising reaction of ammonium hydroxide of formula III, NR 1 R 2 R 3 R 4 wherein R 1 , R 2 , R 3 and R 4 are independently selected from the group of H, alkyl, alkylaryl, aryl and/or heteroaryl, with compound of formula II,
wherein R is selected from H, alkyl, arylalkyl, alkali metal cation, , NH 4 cation, NR 1 R 2 R 3 R 4 cation; X is halogen, such as chloro, bromo, fluoro, piperazinyl, which may be substituted or unsubstituted, and R' is selected from H, formyl or COOAlkyl.
摘要翻译:本发明描述了制备马氟沙星及其中间体的新方法,其包括式III的氢氧化铵,NR 1 R 2 R 3 R 4的反应,其中R 1,R 2,R 3和R 4独立地选自 H,烷基,烷基芳基,芳基和/或杂芳基与式II化合物反应,其中R选自H,烷基,芳烷基,碱金属阳离子,NH 4阳离子,NR 1 R 2 R 3 R 4阳离子; X是卤素,例如氯,溴,氟,哌嗪基,其可以是取代或未取代的,R'选自H,甲酰基或COOA烷基。
摘要:
The present invention relates to polymorphic forms of duloxetine hydrochloride, especially (duloxetine HCl), which are characterized by an X-ray diffraction pattern with peaks (2θ):9.6, 13.9, 18.0, 18.8, 19.2, 20.8, 27.4, 27.9 (designated form A) or an X-ray diffraction pattern with characteristic peaks (2θ): 12.0, 14.8, 19.8, 21.3, 21.6, 22.1, 22.4, 23.1, 24.1 (designated form T). The present invention also pertains to processes for the preparation of form A and form T, which involves dissolving duloxetine hydrochloride in particular solvents and cooling the solution to obtain crystals, that are dried.