(S)-2-{3-[6'-(3-tert-Butoxycarbonylamino-propionylamino)-[2,2']bipyridinyl-6-ylcarbamoyl]-propionylamino}-3-methyl-butyric acid methyl ester 在
lithium hydroxide 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以75%的产率得到(S)-2-{3-[6'-(3-tert-Butoxycarbonylamino-propionylamino)-[2,2']bipyridinyl-6-ylcarbamoyl]-propionylamino}-3-methyl-butyric acid