Parra-Delgado, H; Toscano, RA; Martínez-Vazqueza, M; García-Argaez, Aída Nelly
(2005)
The known nor-diterpene (16R)-ent-17-hydroxy-19-nor-kaur-4-en-3-one and the new nor-diterpene (16R)-ent-19-nor-kaur-4-en-3-oxo-17-oic acid were obtained as a crystalline mixture from roots of C. ghiesbregthiana. Their ...