Studies on the synthesis of the antitumour agent CC-1065. Synthesis of the cyclopropapyrroloindole portion
作者:Philip Magnus、Timothy Gallagher
DOI:10.1039/c39840000389
日期:——
Using a regioselective Mannich reaction the 3,3′-bipyrrole (4) is converted into the acid chloride (10), which is transformed into the tricyclic phenol (11); selective reduction of (11) using triethylsilane in trifluoroacetic acid gives (12), which is converted by further reduction into (14), which by the intermolecular Mitsunobo reaction gives the cyclopropapyrroloindole (17).
使用区域选择性曼尼希反应,将3,3'-联吡咯(4)转化为酰氯(10),再将其转化为三环酚(11);使用三乙基硅烷在三氟乙酸中选择性还原(11)得到(12),通过进一步还原将其转化为(14),通过分子间的Mitsunobo反应得到环丙吡咯并吲哚(17)。