(4aR,19S,20S)-6-Benzyloxy-20-benzyloxycarbonylamino-19-isopropyl-9,15-dimethyl-5,8,11,14,17,21-hexaoxo-octadecahydro-18-oxa-1,6,9,12,15,21a-hexaaza-benzocyclononadecene-1-carboxylic acid benzyl ester 在
盐酸 、 palladium 10% on activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以92%的产率得到(4aR,19S,20S)-20-Amino-6-hydroxy-19-isopropyl-9,15-dimethyl-tetradecahydro-18-oxa-1,6,9,12,15,21a-hexaaza-benzocyclononadecene-5,8,11,14,17,21-hexaone; hydrochloride