(S)-2-{[(3S,8S)-3-[4-(3-chloro-phenoxy)-phenyl]-7-(2,5-dimethyl-oxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester 在
水 、 lithium hydroxide 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
反应 0.5h,
生成
(S)-2-{[(3S,8S)-3-[4-(3-chloro-phenoxy)-phenyl]-7-(2,5-dimethyl-oxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid