Synthesis of a griseofulvin analogue.
作者:MASATOSHI YAMATO、HIROKAZU YOSHIDA、KIMIO IKEZAWA、YOSHIE KOHASHI
DOI:10.1248/cpb.34.71
日期:——
Ring contraction of 6-ethoxycarbonyl-4, 5, 7-trihydroxycoumarin (7) to a 3(2H)-benzofuranone (13) was achieved. Compound 13 was utilized in a synthesis of a griseofulvin analogue (1b) with an ethoxycarbonyl group at the 5 position. However, 1b was found to be inactive in a test of fungicidal activity.
6-乙氧基羧基-4, 5, 7-三羟基香豆素(7)的环收缩反应成功转化为3(2H)-苯并呋喃酮(13)。化合物13被用于合成一种具有5位乙氧基羧基的灰黄霉素类似物(1b)。然而,发现化合物1b在真菌活性测试中无效。