作者:T. V. Khakimova、O. A. Pukhlyakova、G. A. Shavaleeva、A. A. Fatykhov、E. V. Vasil'eva、L. V. Spirikhin
DOI:10.1023/a:1013778703658
日期:——
A series of new N-substituted cytisine derivatives was synthesized. The H-1 and (13) C NMR spectra of certain compounds exhibit a doubled set of signals. This is explained by formation of diastereomeric pairs in compounds containing an asymmetric center in the substituents. The signal splitting in -COHC=CHCO2H and HC=O (formyl) derivatives is explained by the existence of Z and E invertomers. Their stereochemical features are discussed. Amide conjugation is confirmed by temperature experiments.