tert-butyl 3-[2-[2-[2-[2-[6-[[(19S)-19-ethyl-19-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2(11),3,5,7,9,15(20)-heptaen-7-yl]oxycarbonylamino]hexylcarbamoyloxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate 在
三氟乙酸 作用下,
反应 0.33h,
以92%的产率得到3-[2-[2-[2-[2-[6-[[(19S)-19-ethyl-19-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2(11),3,5,7,9,15(20)-heptaen-7-yl]oxycarbonylamino]hexylcarbamoyloxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid