title: Minor new constituents from Heteroplexis micocephala.
abstract: By using a combination of various chromatographic techniques including column chromatography over silica gel and Pharmadex LH-20 and reversed-phase HPLC, two minor new compounds, labda-12, 14-dien-6beta, 7alpha, 8beta, 17-tetraol (1), 2, 3-cis-6-acetyl-5-hydroxy-2-(hydroxymethylvinyl)-2, 3-dihydrobenzofuran-3-ol angelate (2), and a minor new natural product 6-methoxy-4-methyl-3, 4-dihydro-2H-naphthalen-1-one (3) have been isolated from an ethanolic extract of Heteroplexis micocephala. Their structures were elucidated with spectroscopic data analysis including 2D NMR experiments.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education of PRC, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
authors.forename: Xiao-Na
authors.initials: XN
authors.lastname: Fan
authors.forename: Sheng
authors.initials: S
authors.lastname: Lin
authors.forename: Cheng-Gen
authors.initials: CG
authors.lastname: Zhu
authors.forename: Yong-Chun
authors.initials: YC
authors.lastname: Yang
authors.forename: Jian-Gong
authors.initials: JG
authors.lastname: Shi
mesh_terms: D031173:Aster Plant / Q000737:chemistry*; D001572:Benzofurans / Q000737:chemistry / Q000302:isolation & purification*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D009281:Naphthalenes / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: C570059:2 3-cis-6-acetyl-5-hydroxy-2-(hydroxymethylvinyl)-2,3-dihydrobenzofuran-3-ol angelate; C570058:6-methoxy-4-methyl-3, 4-dihydro-2H-naphthalen-1-one; D001572:Benzofurans; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D009281:Naphthalenes; C570057:labda-12,14-dien-6beta,7alpha,8beta,17-tetraol