[EN] A PROCESS FOR THE PREPARATION OF SOFOSBUVIR INTERMEDIATES & ITS POLYMORPH<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'INTERMÉDIAIRES SOFOSBUVIR ET LEUR FORME POLYMORPHE
申请人:LUPIN LTD
公开号:WO2016181313A1
公开(公告)日:2016-11-17
The present invention provides a novel process for preparation N-[(2,3,4,5,6- Pentafluorophenoxy)phenoxyphosphinyl]-L-alanine 1-methylethyl ester (formula 2) and resolving the formula 2 in the presence base to form N-[(S)-(2,3,4,5,6- Pentafluorophenoxy)phenoxyphosphinyl]-L-alanine 1-methylethyl ester (formula 2').
本发明提供了一种新颖的制备N-[(2,3,4,5,6-五氟苯氧基)苯氧基磷酰基]-L-丙氨酸1-甲基乙酯(式2)并在碱存在下将式2分解形成N-[(S)-(2,3,4,5,6-五氟苯氧基)苯氧基磷酰基]-L-丙氨酸1-甲基乙酯(式2')的新工艺。