The synthesis of a novel benzodiazocine via an intramolecular Staudinger/aza-Wittig cyclization
作者:Ian A O'Neil、Clare L Murray、Andrew J Potter、S.Barret Kalindjian
DOI:10.1016/s0040-4039(97)00680-1
日期:1997.5
The novel pyrrolobenzodiazocine (1) has been prepared by an intramolecular Staudinger/aza Wittig protocol from the precursor azido aldehyde (2) in a remarkable 93% yield. Aldehyde (2) was prepared by coupling protected homoprolinol with 2-azidobenzoic acid followed by deprotection and oxidation.
通过分子内的Staudinger / Aza Wittig方案,由前体叠氮基醛(2)制备了新型吡咯并苯并重氮化合物(1),产率高达93%。通过将保护的高脯氨醇与2-叠氮基苯甲酸偶合,然后脱保护和氧化来制备醛(2)。