title: Three new cassane diterpenes from the seeds of Caesalpinia minax Hance.
abstract: Three new cassane-diterpene-lactones, methyl 1α,7β-diacetoxy-5α,12α-dihydroxy-cass-13(15)-en-16,12-olide-17β-carboxylate (1), methyl 7β-acetoxy-1α,5α,12α-trihydroxy-cass-13(15)-en-16,12-olide-17β-carboxylate (2), and 12α-ethoxyl-1α,6α,7β-triacetoxy-5α,14β-dihydroxy-cass-13(15)-en-16,12-olide (3), were isolated from the seeds of Caesalpinia minax Hance. Their structures were established on the basis of HR-ESI-MS, 1D and 2D NMR spectral analysis.
authors.affiliation: Department of Pharmacology, Mudanjiang Medical College, Mudanjiang, China.
authors.forename: Zhao-Hua
authors.initials: ZH
authors.lastname: Wu
authors.forename: Jian
authors.initials: J
authors.lastname: Huang
authors.forename: Wei-Dong
authors.initials: WD
authors.lastname: Li
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wu
authors.forename: Hui-Yuan
authors.initials: HY
authors.lastname: Gao
mesh_terms: D029911:Caesalpinia / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012639:Seeds / Q000737:chemistry
chemical_list: C552787:12-ethoxyl-1,6,7beta-triacetoxy-5,14beta-dihydroxy-cass-13(15)-en-16,12-olide; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; C552785:methyl-1,7beta-diacetoxy-5,12-dihydroxy-cass-13(15)-en-16,12-olide-17beta-carboxylate; C552786:methyl-7beta-acetoxy-1,5,12-trihydroxy-cass-13(15)-en-16,12-olide-17beta-carboxylate