作者:A. N. Reznikov、V. A. Ostrovskii、Yu. N. Klimochkin
DOI:10.1134/s1070428018110155
日期:2018.11
Nonracemic 3-substituted 4-(1H-tetrazol-1-yl)butanoic acids, analogs of the neurotropic drugs phenibut, tolibut, and baclofen, were synthesized by a three-component reaction of the R-isomers of the corresponding amino acids, triethyl orthoformate, and sodium azide. The key stage of the synthesis is the asymmetric addition of diethyl malonate to nitroalkenes, catalyzed by a Ni(II) complex of (S,S)-N
通过相应氨基酸的R-异构体的三组分反应,合成了非外消旋的3-取代的4-(1 H-四唑-1-基)丁酸,这是一种神经性药物苯丁酸,甲苯磺丁胺和巴氯芬的类似物,原甲酸三乙酯和叠氮化钠。合成的关键阶段是在(S,S)-N,N'-二苄基环己烷-1,2-二胺的Ni(II)络合物的催化下,将丙二酸二乙酯不对称加成到硝基烯烃中。