(2S)-2-(tert-butoxy)-2-[4,27-dimethyl-26-oxa-1,5,7,8-tetraazahexacyclo[25.2.2.1
(6,9).1
(10,14).0
(2,7).0
(15,20)]tritriaconta-2,4,6(33),8,10(32),11,13,15(20),16,18,23-undecaen-3-yl]acetic acid 在
palladium 10% on activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
反应 1.5h,
以44%的产率得到(2S)-2-(tert-butoxy)-2-{4,2,7-dimethyl-26-oxa-1,5,7,8-tetraazahexacyclo[25.2.2.1
(6,9).1
(10,14).0
(2,7).0
(15,20)]tritriaconta-2,4,6(33),8,10(32),11,13,15(20),16,18-decaen-3-yl}acetic acid