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Communication | Regular issue | Vol 24, No. 8, 1986, pp.2105-2108
Published online, 1st January, 1970
DOI: 10.3987/R-1986-08-2105
Four New C20-Diterpene Alkaloids, Spirasine I, Spirasine II, Spirasine VII and Spirasine VIII from Spiraea japonica

Fang Sun, Xiao-tian Liang,* and De-quan Yu

*Institute of Materia Medica, Chinese Academy of MedicalSceince, Nan-wei Road, Beijing 100050, China

Abstract

The structures of spirasine I (1), spirasine II (2), spirasine VII (3) and spirasine VIII (4), new C20-diterpene alkaloids isolated from Spiraea japonica, were established on the basis of chemical and spectroscopic evidence and confirmed by X-ray crystallography.