Synthesis of Novel Thieno[2,3-d]pyrimidine, Thieno[2,3-b]pyridine and Thiazolo[3,2-a]thieno[2,3-d]pyrimidine Derivatives and Their Effect on the Production of Mycotoxins
作者:Fathy M. Abdelrazek、Abdellatif M. Salah、Zeinab E. Elbazza
DOI:10.1002/ardp.19923250510
日期:——
the active methylene reagents 2a‐c to afford the thieno[2,3‐d]pyrimidine derivatives 6a,b and 8, respectively. 1 reacts with phenacyl bromide 2d to afford the N‐alkylation product 9 and reacts with phenacyl thiocyanate 2e to afford the N‐(thiazol‐2‐yl) derivative 10, which was further cyclized into thiazolo[3,2‐a]thieno[2,3‐d]pyrimidine derivative 12. Compound 1 reacts also with the cinnamonitriles
噻吩衍生物 1 与活性亚甲基试剂 2a-c 反应,分别得到噻吩并 [2,3-d] 嘧啶衍生物 6a、b 和 8。1 与苯甲酰溴 2d 反应得到 N-烷基化产物 9 并与苯甲酰硫氰酸酯 2e 反应得到 N-(噻唑-2-基) 衍生物 10,其进一步环化为噻唑并 [3,2-a] 噻吩并[ 2,3-d]嘧啶衍生物 12. 化合物 1 也与肉桂腈 3a,b 反应,分别得到噻吩并 [2,3-b] 吡啶 15a,b。1经过乙酰化或水解分别得到噻吩并[2,3-b]吡啶衍生物19和噻吩衍生物22。一些新化合物对霉菌毒素的产生和真菌生长具有抑制作用。