New diterpenes from Jatropha divaricata.
Extracts of the stems of Jatropha divaricata have yielded the two new diterpenes ent-3 beta,14 alpha-hydroxypimara-7,9(11),15-triene-12-one (3) and the rearranged pimarane ent-15(13-->8)abeo-8 beta(ethyl)pimarane (4), which appears to be a new skeletal type. The rare cleistanthane diterpenes spruceanol (1) and cleistanthol (2) were also obtained.
Denton
R W
RW
Department of Chemistry, University of the West Indies, Mona, Kingston 7, Jamaica.
Harding
W W
WW
Anderson
C I
CI
Jacobs
H
H
McLean
S
S
Reynolds
W F
WF
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D019665:Euphorbiaceae / Q000737:chemistry*; D007563:Jamaica; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D010946:Plants, Medicinal / Q000737:chemistry*
D004224:Diterpenes; C433627:ent-3 ,14 -hydroxypimara-7,9(11),15-triene-12-one