title: [Application of 2d NMR techniques in the structure determination of ganosporelactone A and B].
abstract: Structure and stereochemistry of ganosporelactone A and B isolated from the spores of Ganoderma lucidum have been elucidated by the use of 1H-1H COSY, 1H-13C COSY, 1H-13C COLOC and NOESY 2D NMR spectroscopy. Ganosporelactone A and B are two novel pentacyclic triterpenoids which may be biogenetically derived from lanostane skeleton through the construction of C16 and C23 bond.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing.
authors.forename: R Y
authors.initials: RY
authors.lastname: Chen
authors.forename: D Q
authors.initials: DQ
authors.lastname: Yu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D011124:Polyporaceae; D013172:Spores, Fungal; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D014315:Triterpenes; C072998:ganosporelactone A; C072999:ganosporelactone B