Polycondensed heterocycles. X. A new method for the preparation of pyrrolo[2,1-c][1,4]benzothiazepines by intramolecular mitsunobu cyclisation
作者:Antonio Garofalo、Giuseppe Campiani、Isabella Fiorini、Vito Nacci
DOI:10.1016/s0040-4020(98)01127-2
日期:1999.1
A modified Mitsunobu reaction of 2-hydroxymethylpyrrole and suitable thiophenol derivatives lead to intermediates which can be easily elaborated and eventually cyclised to the title compounds. The cyclisation step consists of another Mitsunobu reaction variation by which an “activated” pyrrole is N-alkylated intramolecularly, under very mild conditions.
2-羟甲基吡咯和合适的苯硫酚衍生物的改进的Mitsunobu反应产生中间体,该中间体可以容易地加工并最终环化为标题化合物。环化步骤由另一个Mitsunobu反应变体组成,通过该变体,“活化的”吡咯在非常温和的条件下在分子内进行N-烷基化。