Modification of biologically active amides and amines with fluorine-containing heterocycles 2*. N-(2-Thienyl)imines on the base of methyl trifluoropyruvate in cyclocondensation with 1,3-N, N-binucleophiles
作者:V. B. Sokolov、A. Yu. Aksinenko
DOI:10.1007/s11172-010-0062-y
日期:2010.1
An approach to the modification of the biologically active compounds, substituted 2-aminothiophenes, with fluorine-containing five-membered heterocycles is proposed. The reaction of 2-aminothiophenes with methyl trifluoropyruvate yields the corresponding N-(2-thienyl)imines, their subsequent cyclocondensation with 1,3-N,N-binucleophiles (2-aminothiazoline and benzamidines) furnished 5-oxo-6-trifluoromethyl-2,3,5,6-tetrahydroimidazothiazoles and 5-oxo-2-phenyl-4-trifluoromethyl-4,5-dihydro-1H-imidazoles.
本文提出了一种用含氟五元杂环对具有生物活性的化合物--取代的 2-氨基噻吩进行修饰的方法。2-aminothiophenes 与三氟丙酮酸甲酯反应生成相应的 N-(2-噻吩基)亚胺,随后与 1,3-N,N-亲核物(2-氨基噻唑啉和苯甲脒)环缩合生成 5-氧代-6-三氟甲基-2,3,5,6-四氢咪唑噻唑和 5-氧代-2-苯基-4-三氟甲基-4,5-二氢-1H-咪唑。