申请人:Vellanki Siva Rama Prasad
公开号:US20120251826A1
公开(公告)日:2012-10-04
A process for the preparation of Darunavir comprises the reacting of 4-amino-N-(2R,3S) (3-amino-2-hydroxy-4-phenylbutyl)-N-isobutyl-benzenesulfonamide with (3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol derivative in N-methyl-2-pyrrolidinone and isolating the resulting Darunavir. The process yields Darunavir with a very low level of the difuranyl impurity.
达芦那韦的制备方法包括在N-甲基-2-吡咯烷酮中,将4-氨基-N-(2R,3S) (3-氨基-2-羟基-4-苯基丁基)-N-异丁基苯磺酰胺与(3R,3aS,6aR)-六氢呋喃[2,3-b]呋喃-3-醇衍生物反应,并分离得到的达芦那韦。该过程产生的达芦那韦中二呋喃杂质的含量非常低。