Triterpenes from the combined leaf and stem of Lithospermum caroliniense.
An investigation of the combined leaf and stem of Lithospermum caroliniense afforded two new pentacyclic triterpenoids based on the olean-12-ene and taraxast-12-ene skeletal types. The structures of these compounds were elucidated on the basis of spectral analysis as 1 alpha,3 beta,23-trihydroxyolean-12-ene-28-oic acid and 3 alpha,19 beta,21 alpha,23-tetrahydroxytaraxast-12-ene-28-oic acid.
Fullas
F
F
Research Triangle Institute, NC 27709, USA.
Wani
M C
MC
Wall
M E
ME
Tucker
J C
JC
Beecher
C W
CW
Kinghorn
A D
AD
D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D014315:Triterpenes