(1S,2S,3a1S,12bS)-1-methoxy-2-((triisopropylsilyl)oxy)-2,3a1,4,5,7,12b-hexahydro-1H-[1,3]dioxolo[4,5-j]pyrrolo[3,2,1-de]phenanthridine 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以53%的产率得到(1S,17S,18S,19S)-18-methoxy-5,7-dioxa-12-azapentacyclo[10.6.1.02,10.04,8.015,19]nonadeca-2,4(8),9,15-tetraen-17-ol