methyl 2-(nitromethyl)benzoate 、
1,11-dichloro-12,13-dihydro-6-[(phenylmethoxy)methyl]-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7(6H)-dione 在
silver(l) oxide 作用下,
以
苯 为溶剂,
以32%的产率得到(2R,3R,4S,5R,6R)-6-(acetoxymethyl)-2-(6-((benzyloxy)methyl)-1,11-dichloro-5,7-dioxo-5,6,7,13-tetrahydro-12H-indolo[2,3-a]pyrrolo[3,4-c]carbazol-12-yl)-5-methoxytetrahydro-2H-pyran-3,4-diyl diacetate