Qg. Ma et al., CHEMICAL STUDIES OF LANG-DU, A TRADITIONAL CHINESE MEDICINE .1. DITERPENOIDS FROM EUPHORBIA-FISCHERIANA, Phytochemistry, 44(4), 1997, pp. 663-666
Three tigliane-type diterpenoids, langduin A, 12-deoxyphorbol-13-hexad
ecanoate and prostratin, were isolated from the roots of Euphorbia fis
cheriana. The first two are new compounds. The third has been isolated
for the first time from this plant and showed analgesic and sedative
activities in preliminary experiments with mice. The structures have b
een determined on the basis of spectral methods. Copyright (C) 1997 El
sevier Science Ltd.