作者:Francesco Dall'Acqua、Daniela Vedaldi、Franco Bordin、Francarosa Baccichetti、Francesco Carlassare、Marisa Tamaro、Paolo Rodighiero、Giovanni Pastorini、Adriano Guiotto
DOI:10.1021/jm00360a016
日期:1983.6
UV-A, the three compounds strongly inactivate T2 phage and inhibit epidermal DNA synthesis in mice. Moreover, they show a mutagenic activity markedly lower than that of 8-methoxypsoralen on Escherichia coli wild-type strain. Due to its lack of skin phototoxicity, its low mutagenic activity, and its antiproliferative activity, 2c was chosen for clinical evaluation. It proved to be effective in clearing
为了获得用于牛皮癣光化学疗法的新药物,已制备了当归素(1)的三种衍生物[4'-甲基-,4,4'-二甲基-和4',5-二甲基Angelicin(2a-c)]。 。这些化合物在黑暗中与DNA形成复合物,该复合物显示出对大分子的亲和力高于亲代当归(1)。已经观察到它们的辛醇/水分配系数与配合物的缔合常数之间的相关性。化合物2a-c与DNA的光结合程度远高于1,并且也比8-甲氧基补骨脂素(8-MOP)更有效。当被UV-A激活时,这三种化合物会强烈地灭活T2噬菌体并抑制小鼠中的表皮DNA合成。此外,它们在大肠杆菌野生型菌株上的诱变活性明显低于8-甲氧基补骨脂素。由于缺乏皮肤光毒性,低诱变活性和抗增殖活性,因此选择2c进行临床评估。它被证明可有效清除两名患者的牛皮癣。