ethyl 2-[(3S,4R)-4-[(3,4-dichloro-5-methyl-1H-pyrrole-2-carbonyl)amino]-3-methoxy-1-piperidyl]-4-[[(1S)-2-methoxy-1-methyl-ethyl]carbamoyl]thiazole-5-carboxylate 在
barium(II) hydroxide 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以95%的产率得到2-[(3S,4R)-4-[(3,4-dichloro-5-methyl-1H-pyrrole-2-carbonyl)-amino]-3-methoxy-1-piperidyl]-4-[[(1S)-2-methoxy-1-methylethyl]carbamoyl]thiazole-5-carboxylic acid