反应详情

Among the pyrrole derivatives of 1,4-dihydroxynaphthalene which can be used according to the present invention, 2-(1-methyl-1H-pyrrol-2-yl)-[1,4]-dihydroxynaphthalene and methyl [5-(1,4-dihydroxynaphthalen-2-yl)-1-methyl-1H-pyrrol-2-yl]acetate are more particularly preferred.