(S)-2-[(S)-2-((R)-1-Ethoxycarbonyl-3-phenyl-propylamino)-propionyl]-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid benzyl ester; hydrochloride 在
palladium on activated charcoal
氢气 作用下,
以
四氢呋喃 为溶剂,
以31%的产率得到(S)-2-[(S)-2-((R)-1-Ethoxycarbonyl-3-phenyl-propylamino)-propionyl]-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid; hydrochloride