benzyl N-[(12S,15S,18S)-12-(hydroxymethyl)-15-(2-methylpropyl)-14,17-dioxo-2-oxa-5,6,7,13,16-pentaazatricyclo[18.2.2.1(4,7)]pentacosa-1(22),4(25),5,20,23-pentaen-18-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-[(12S,15S,18S)-12-formyl-15-(2-methylpropyl)-14,17-dioxo-2-oxa-5,6,7,13,16-pentaazatricyclo[18.2.2.1(4,7)]pentacosa-1(22),4(25),5,20,23-pentaen-18-yl]carbamate