CARDIAC GLYCOSIDES OF ERYSIMUM CONTRACTUM

Article abstract of DOI:10.1007/BF00629830

The cardenolide composition of Erysimum contractum Somm. et Lew. familiy Brassicaceae (Cruciferae) has been investigated.The seeds of this plant have yielded strophanthidin, erysimin, erysimoside, erycordin, and new cardiac glycoside which has been called nigrescigenin digitoxoside.It has mp 141 - 145 deg C, <α>_D²⁰ +16.0 +/- 2 deg C (c 0.75; methanol), C29H42O10.On the basis of chemical transformations and spectral investigations it has been established that the new glycoside is 3β-D-digitoxopyranosyloxy-5,11α,14-trihydroxy-19-oxo-5β,14β-card-20(22)-enolide.The total content of cardiac glycosides in the seeds of this plant amounted to 3.2percent, including 1.26percent of erysimoside.