title: [Study on chemical constituents from stem of Mallotus apelta].
abstract: Eight compounds were isolated from the ethyl-acetate extract of the stem of Mallotus apelta Muell. -Arg. The structures of eight compounds were identified by means of spectroscopic analysis as 12-ursen-3-one (I), 3-hydroxy-12-ursen (II), mussaenoside (III), 6-methoxy-2H-1-benzopyron4-one (IV), ursolic acid (V), acetyl aleuritolic acid (VI), beta-sitosterol-3-O-beta-D-glucopyranoside (daucosterol VII), beta-sitosterol (VII). Compound I to approximately V were obtained from this plant for the first time.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medicine, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, Shanghai 201203.
authors.forename: Xiaoman
authors.initials: X
authors.lastname: Qi
authors.forename: Yiping
authors.initials: Y
authors.lastname: Yang
authors.forename: Yang
authors.initials: Y
authors.lastname: Ye
mesh_terms: D002855:Chromatography, Thin Layer; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D036461:Mallotus Plant / Q000737:chemistry*; D008970:Molecular Weight; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000097245:Ursolic Acid
chemical_list: D039823:Iridoids; D012855:Sitosterols; D014315:Triterpenes; D000097245:Ursolic Acid; C469308:mussaenoside; C025473:gamma-sitosterol