Phosphoric acid dibenzyl ester 3-[(S)-1-((S)-2-cyclopropyl-2-hydroxy-acetyl)-4-(2,5-difluoro-phenyl)-2,5-dihydro-1H-pyrrol-2-yl]-phenyl ester 在
palladium on activated charcoal
1,4-环己二烯 作用下,
以
甲醇 为溶剂,
以95%的产率得到3-[(2S)-1-[(2S)-2-cyclopropyl-2-hydroxyethanoyl]-4-(2,5-difluorophenyl)-2,5-dihydro-1H-pyrrol-2-yl]phenyl dihydrogen phosphate