Synthesis of Some Benzofuran and Furocoumarin Derivatives for Possible Biological Activity
作者:A.H. Abd El Rahman、O.H. Hishmat、Kh.M.A. Khalil、M.I. Moawad、M.M. Atalla
DOI:10.1002/jps.2600710922
日期:1982.9
Condensation of 5-formyl-6-methoxy-2,3-diphenylbenzofuran (I) and 6-formyl-5-methoxy-2,3-diphenylbenzofuran (II) with aliphatic or aromatic primary amines led to the formation of the corresponding anils (IIIa-k and IVa-c). The anils (IIIa,f,k or IVa-c) reacted with ethyl cyanoacetate, ethyl acetoacetate, or diethyl malonate to form the respective esters (Va-c or VIa-c). When Va-c or VIa-c were treated
5-甲酰基-6-甲氧基-2,3-二苯基苯并呋喃(I)和6-甲酰基-5-甲氧基-2,3-二苯基苯并呋喃(II)与脂族或芳族伯胺的缩合导致形成相应的茴香胺( IIIa-k和IVa-c)。所述茴香(IIIa,f,k或IVa-c)与氰基乙酸乙酯,乙酰乙酸乙酯或丙二酸二乙酯反应以形成相应的酯(Va-c或VIa-c)。当用吡啶盐酸盐处理Va-c或VIa-c时,发生脱甲基,然后环化形成相应的呋喃香豆素(VIIa-c或VIIIa-c)。使用硼氢化钠还原的茴香提供了相应的曼尼希碱(Xa-d和XI)。研究了化合物IIIi,IVc,Va,VIa和VIIIa的抗菌活性。