[(S)-4-Methyl-2-({(S)-1-[(E)-3-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-acryloyl]-pyrrolidine-2-carbonyl}-amino)-pentanoylamino]-acetic acid ethyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
反应 12.0h,
以98%的产率得到[(S)-4-Methyl-2-({(S)-1-[3-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-propionyl]-pyrrolidine-2-carbonyl}-amino)-pentanoylamino]-acetic acid ethyl ester