作者:Georges P.-J Hareau、Saburo Neya、Noriaki Funasaki、Isao Taniguchi
DOI:10.1016/s0040-4039(02)00466-5
日期:2002.4
A new approach to protoporphyrins III (2′) and XIII (3′) has been developed based on a single set of starting materials, namely, 2,4-dimethyl-3-(2-chloroethyl)carbethoxypyrrole (4) and 3,3′-di(2-methoxycarbonylethyl)-4,4′-dimethyldipyrromethane-5,5′-dicarboxylic acid (5) for both targets. The biladiene route was adopted for the preparation of 2′ (five steps, 18% overall yield) while the coupling of
基于单一的原料,即2,4-二甲基-3-(2-氯乙基)碳乙氧基吡咯(4)和3,开发了一种新的原卟啉III(2')和XIII(3')方法。3 ' -二(2-甲氧羰基乙基)-4,4- ' -dimethyldipyrromethane -5,5- ' -二羧酸(5),用于两个靶。采用胆二烯路线制备2'(五个步骤,总产率18%),同时使用两个吡咯并蒽的偶联来合成3'(四个步骤,总产率11%)。