Synthesis of a Series of Mono-<i>meso</i>-arylmesoporphyrins III of Biological Interest and Their Biliverdin Derivatives
作者:Graciela Buldain、Fernando Niemevz、Ma. Vazquez
DOI:10.1055/s-2008-1032203
日期:2008.3
MacDonald-type 2+2 condensation is described. In this method, the substituted 1,9-diformyldipyrromethane is treated with a dipyrromethane-1,9-dicarboxylic acid under acidic conditions. The 5-aryldipyrrolic unit was obtained by condensation of TERT-butyl, ethyl, or benzyl 4-ethyl-3-methyl-1 H-pyrrole-2-carboxylate with different aromatic aldehydes in the presence of 4-toluenesulfonic acid. In order to obtain
描述了使用 MacDonald 型 2+2 缩合合成一系列单-MESO-芳基中卟啉 III。在该方法中,取代的 1,9-二甲酰基二吡咯甲烷在酸性条件下用二吡咯甲烷-1,9-二羧酸处理。5-芳基二吡咯单元是在 4-甲苯磺酸存在下通过 4-乙基-3-甲基-1 H-吡咯-2-羧酸叔丁酯、乙基或苄基酯与不同的芳香醛缩合获得的。为了获得相应的中胆绿素,对每种中卟啉进行化学氧化。每个 MESO-芳基中卟啉呈现两个异构的芳基胆绿素,因为卟啉 MESO-芳基桥没有被切割。