(2S)-2-(4,27-dimethyl-26-oxa-1,5,7,8,17-pentazahexacyclo[25.2.2.16,9.110,14.02,7.015,20]tritriaconta-2,4,6(33),8,10(32),11,13,15(20),16,18,23-undecaen-3-yl)-2-[(2-methylpropan-2-yl)oxy]acetic acid 在
palladium on activated charcoal 、
氢气 、
对甲苯磺酸 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以42%的产率得到(2S)-2-(tert-butoxy)-2-{4,27-dimethyl-26-oxa-1,5,7,8,17-pentaazahexacyclo[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