Regioselective [2,3] sigmatropic rearrangement to the pyrrolo[3,2-e] indole ring system of CC-1065
作者:Martha A Warpehoski、V.Susan Bradford
DOI:10.1016/s0040-4039(00)84630-4
日期:——
A short and efficient synthesis of the 1,2-dihydro-3H-pyrrolo[3,2-e]indole (2) ring system of the antitumor antibiotic CC-1065 () from ethyl-5-aminoindole-2-carboxylate 3 was made possible by the inherent regioselectivity of the [2,3] sigmatropic rearrangement of the azasulfonium ylide 4 and a thiation-reduction sequence for oxindole to indoline conversion.
1,2-二氢-3H-吡咯并[3,2-E]吲哚(的简短和有效的合成2的)环系的抗肿瘤抗生素CC-1065(由乙基-5-氨基吲哚-2-羧酸酯)3被氮杂叶立德4的[2,3]σ重排的固有区域选择性和羟吲哚向二氢吲哚转化的硫杂化还原顺序使得上述反应成为可能。