PROCESS FOR PREPARATION OF SUBSTANTIALLY PURE FOSAMPRENAVIR CALCIUM AND ITS INTERMEDIATES
申请人:Arora Surinder Kumar
公开号:US20130174651A1
公开(公告)日:2013-07-11
The present invention relates to fosamprenavir calcium (Ia) substantially free of isomer impurity, (3R) tetrahydro -3 -furanyl(1S,2R)-3-[[(4-aminophenyl)sulfonyl](isobutyl)amino]-1-benzyl-2-(phosphonooxy)propyl carbamate (Ib), and its process for preparation thereof. The present invention also provides fosamprenavir calcium intermediate, (S)-3-tetrahydrofuranyl-N-succinimidyl carbonate (IIa) substantially free of (R)-3-tetrahydrofuranylsuccinimidyl carbonate (IIb) and its process for preparation thereof.
本发明涉及基本上不含异构杂质的福扎韦
钙(Ia),(3R)
四氢呋喃基(1S,2R)-3-[[(4-
氨基苯基)磺酰](异丁基)
氨基]-1-苄基-2-(
磷酸酯基)
丙烯基
氨基甲酸酯(Ib),以及其制备方法。本发明还提供福扎韦
钙中间体,(S)-3-
四氢呋喃基-N-琥珀
酰亚胺基
碳酸酯(IIa),基本上不含(R)-3-
四氢呋喃基琥珀
酰亚胺基
碳酸酯(IIb),以及其制备方法。