作者:V. A. Mamedov、N. A. Zhukova、T. N. Beschastnova、Ya. A. Levin、A. T. Gubaidullin、I. A. Litvinov
DOI:10.1007/s11172-007-0365-9
日期:2007.11
The condensation of methyl phenylchloropyruvate with 1-phenyl-3-(2-pyridyl)thiourea and its 3-and 4-picolyl homologs affords the corresponding 4-hydroxythiazolidines, which react with o-phenylenediamine to give one of two possible thiazolo[3,4-a]quinoxalines containing the pyridyl-or picolylimine substituents at position 1. 3a-Hydroxy-3-phenylimino-1-(2-pyridyl)thiazolo[3,4-a]quinoxalin-4-(3H,5H)-one
苯基氯丙酮酸甲酯与 1-苯基-3-(2-吡啶基)硫脲及其 3-和 4-吡啶甲基同系物的缩合得到相应的 4-羟基噻唑烷,它们与邻苯二胺反应得到两种可能的噻唑 [3, 4-a]喹喔啉在 1 位含有吡啶基-或甲基吡啶亚胺取代基。 3a-Hydroxy-3-phenylimino-1-(2-pyridyl)thiazolo[3,4-a]quinoxalin-4-(3H,5H)-one是最终产物的共价水合物,在该反应中作为中间体被分离出来。