Cyclic guanidines. X. Synthesis of 2-(2,2-disubstituted ethenyl- and ethyl)-2-imidazolines as potent hypoglycemics.
作者:FUMIYOSHI ISHIKAWA
DOI:10.1248/cpb.28.1394
日期:——
2-(2, 2-Disubstituted ethenyl-and ethyl)-2-imidazoline derivatives (11, 14) were prepared by direct cyclization of active intermediates, 3, 3-disubstituted acrylimidic ethyl esters (9, 10), with ethylenediamine. The stereoisomers, (Z)-and (E)-3-phenyl-3-pyridylacrylic acid esters (6c-e), nitriles (7c-e) and amides (8c-e), as well as (Z)-and (E)-3-phenyl-3-pyridylacrylimidic acid esters (10c-e), and (Z)-and (E)-2-(2-pyridylethenyl)-2-imidazolines (11c-e), were isolated. Their structures are discussed. Compounds 11 and 14 showed potent hypoglycemic activity.
2-(2, 2-二取代乙烯基和乙基)-2-咪唑啉衍生物 (11, 14) 是通过活性中间体 3, 3-二取代丙烯酰亚胺乙酯 (9, 10) 与乙二胺直接环化而制备的。分离出了立体异构体(Z)-和(E)-3-苯基-3-吡啶基丙烯酸酯(6c-e)、腈(7c-e)和酰胺(8c-e),以及(Z)-和(E)-3-苯基-3-吡啶基丙烯酰亚胺酸酯(10c-e)和(Z)-和(E)-2-(2-吡啶乙烯基)-2-咪唑啉(11c-e)。本文讨论了它们的结构。化合物 11 和 14 具有强效降血糖活性。