benzyl N-[(11S,14S,17S)-17-(hydroxymethyl)-14-(2-methylpropyl)-12,15-dioxo-2-oxa-5,6,7,13,16-pentaazatricyclo[17.2.2.1(4,7)]tetracosa-1(21),4(24),5,19,22-pentaen-11-yl]carbamate 在
戴斯-马丁氧化剂 作用下,
以
二氯甲烷 为溶剂,
以80%的产率得到benzyl N-[(11S,14S,17S)-17-formyl-14-(2-methylpropyl)-12,15-dioxo-2-oxa-5,6,7,13,16-pentaazatricyclo[17.2.2.1(4,7)]tetracosa-1(21),4(24),5,19,22-pentaen-11-yl]carbamate