A NOVEL PROCESS FOR THE PREPARATION OF N-(4-NITRO-2-SULFAMOYL-PHENYL)-MALONAMIC ACID METHYL ESTER AND N-(4-AMINO-2-SULFAMOYL-PHENYL)-MALONAMIC ACID METHYL ESTER
申请人:Hoffmann-La Roche Inc.
公开号:US20140200362A1
公开(公告)日:2014-07-17
The present invention provides a novel method for preparing compounds N-(4-nitro-2-sulfamoyl-phenyl)-malonamic acid methyl ester and N-(4-amino-2-sulfamoyl-phenyl)-malonamic acid methyl ester, which are novel intermediates for preparing a key intermediate N-(4-methanesulfonylamino-2-sulfamoyl-phenyl)-malonamic acid methyl ester, for the preparation of N-(3-(1R,2S,7R,8S)-3-[(4-fluorophenyl)methyl]-6-hydroxy-4-oxo-3-azatricyclo [6.2.1.0
2,7
]undec-5-en-5-yl}-1,1-dioxo-1,4-dihydro-1λ
6
,2,4-benzothiadiazin-7-yl)methanesulfonamide, also known commercially as Setrobuvir, a compound useful in treating hepatitis C.
本发明提供了一种制备化合物N-(4-硝基-2-磺酰胺基-苯基)-丙二酸甲酯和N-(4-氨基-2-磺酰胺基-苯基)-丙二酸甲酯的新方法,这些化合物是制备关键中间体N-(4-甲磺酰氨基-2-磺酰胺基-苯基)-丙二酸甲酯的新颖中间体,用于制备N-(3-(1R,2S,7R,8S)-3-[(4-氟苯基)甲基]-6-羟基-4-氧代-3-氮杂三环[6.2.1.0
2,7
]十一碳-5-烯-5-基}-1,1-二氧化-1,4-二氢-1λ
6
,2,4-苯并噻二唑-7-基)甲磺酰胺的方法,该化合物在商业上称为Setrobuvir,是一种用于治疗丙型肝炎的化合物。