4-[8-(4-Formylphenyl)octa-1,3,5,7-tetraynyl]benzaldehyde 、
tert-Butyl-(3-ethyl-4-methyl-pyrrolyl-2)-methanoat 在
对甲苯磺酸 作用下,
以
二氯甲烷 为溶剂,
以64%的产率得到tert-butyl 5-[[4-[8-[4-[bis[4-ethyl-3-methyl-5-[(2-methylpropan-2-yl)oxycarbonyl]-1H-pyrrol-2-yl]methyl]phenyl]octa-1,3,5,7-tetraynyl]phenyl]-[4-ethyl-3-methyl-5-[(2-methylpropan-2-yl)oxycarbonyl]-1H-pyrrol-2-yl]methyl]-3-ethyl-4-methyl-1H-pyrrole-2-carboxylate