Reactions of 17-chloro-16-formylandrosta-5,16-diene with thiohydrazides of oxamic acids
作者:I. V. Zavarzin、Ya. S. Antonov、E. I. Chernoburova、M. A. Shchetinina、N. G. Kolotyrkina、A. S. Shashkov
DOI:10.1007/s11172-013-0384-7
日期:2013.12
Reactions of thiohydrazides of oxamic acids with 17-chloro-16-formylandrosta-5,16-diene give the corresponding thiohydrazones at the formyl group. Their subsequent reactions with alkali (het)arenethiolates yield 17-het(aryl)thio derivatives, being accompanied by cyclization of the thiooxalylhydrazone fragment into a 1,3,4-thiadiazole ring.
氨基甲酸的硫酰肼与 17-氯-16-甲酰基雄甾-5,16-二烯反应,在甲酰基上产生相应的硫酰肼。随后,它们与碱(庚基)壬硫酸盐反应,生成 17-het(芳基)硫代衍生物,同时硫代酰肼片段环化为 1,3,4-噻二唑环。