title: [Chemical constituents from the mangrove plant Ceriops tagal].
abstract: OBJECTIVE
  To investigate the secondary metabolites of the mangrove plant Ceriops tagal.
  
  
  METHODS
  Column chromatography techniques including HPLC were used for the separation and purification, and extensive spectral analysis including various 2D NMR spectra were employed for structure elucidation.
  
  
  RESULTS
  Nine compounds, namely, tagalsins A (1), ent-5alpha-dolabr-4 (18) -ene-15S,16-diol (2), squalene (3), betulinic acid (4), lup-20 (29) -en-3-on-28-oic acid (5), betulin (6), lup-20 (29) -en-3-on-28-ol (7), beta-sitosterol (8), n-hexacosanylferulate (9) were obtained. Of which 1 and 2 belong to dolabrane diterpene.
  
  
  CONCLUSIONS
  Compound 1 is a new compound, and 2 to 9 are isolated from this species for the first time.
authors.affiliation: Ocean University of China, Qingdao 266003, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Deng
authors.forename: Tian-Xiang
authors.initials: TX
authors.lastname: Gao
authors.forename: Hong-Zheng
authors.initials: HZ
authors.lastname: Fu
authors.forename: Wen-Han
authors.initials: WH
authors.lastname: Lin
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D053978:Pentacyclic Triterpenes; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D043982:Rhizophoraceae / Q000737:chemistry*; D013185:Squalene / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000094062:Betulinic Acid
chemical_list: D004224:Diterpenes; D053978:Pentacyclic Triterpenes; D014315:Triterpenes; C519423:tagalsin A; C002503:betulin; D013185:Squalene; D000094062:Betulinic Acid