5-[4-Ethyl-5-{3-ethyl-5-[1-(4-ethyl-3,5-dimethyl-1H-pyrrol-2-yl)-meth-(Z)-ylidene]-4-methyl-5H-pyrrol-2-ylmethyl}-pyrrol-(2Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid methyl ester 在
copper diacetate 、
sodium acetate 作用下,
以
甲醇 、
溶剂黄146 为溶剂,
以16%的产率得到methyl 8,12-18-triethyl-3,13,17-trimethylporphyrin-2-carboxylate