6533b825fe1ef96bd128310e

RESEARCH PRODUCT

Friedelane triterpenes from the stem bark of Caloncoba glauca

Peter G. WatermanPeter G. WatermanAlexander I. GrayAlexander I. GraySimon GibbonsSimon GibbonsRosa M. Giner

subject

chemistry.chemical_classificationStem barkbiologyStereochemistryChemistryPlant ScienceGeneral MedicineHorticulturebiology.organism_classificationBiochemistryTerpeneFlacourtiaceaeTriterpenevisual_artvisual_art.visual_art_mediumBarkMolecular Biology

description

Further investigation of the stem bark of Caloncoba glauca has yielded three minor (D:A)-friedo-oleanane derivatives. These have been identified, on the basis of NMR studies, as the known compound kokoonol [3-oxo-(D:A)-friedo-olean-27-ol] and the novel natural products kokoonal [3-oxo-(D:A)-friedo-olean-27- al] and 3β,21β-dihydroxy-30-nor-(D:A)-friedo-olean-27-oic acid.

https://doi.org/10.1016/0031-9422(93)85433-r