(4R)-5-(4-fluoro-phenyl)-3-[isopropyl-(4-methyl-cyclohex-1-enecarbonyl)-amino]-thiophen-2-carboxylic acid methyl ester 、 (1R,2S,4R)-3-[(2-acetoxy-4-methyl-cyclohexanecarbonyl)-isopropyl-amino]-5-(4-fluoro-phenyl)-thiophen-2-carboxylic acid methyl ester 在
lithium hydroxide 、
水 作用下,
以
1,4-二氧六环 为溶剂,
反应 24.0h,
生成
(4R)-5-(4-fluoro-phenyl)-3-[isopropyl-(4-methyl-cyclohex-1-enecarbonyl)-amino]-thiophen-2-carboxylic acid 、 (1R,2S,4R)-5-(4-fluoro-phenyl)-3-[(2-hydroxy-4-methyl-cyclohexanecarbonyl)-isopropyl-amino]-thiophen-2-carboxylic acid