title: [A new triterpenoid fom Radix Pittospori].
abstract: To investigate chemical constituents from Radix Pittospori, chloroform extract of the roots was subjected to column chromatography with various chromatographic techniques. The structures were elucidated on the basis of physico-chemical property and spectral analysis. Two triterpenoids were identified as 22-acetyl-21-(2-acetoxy-2-methylbutanoyl)-R1-barrigenol(1) and 3alpha-hydroxyl-20-demethylisoaleuritolic-14(15)-ene-28, 30-dioic acid (2). Compound 1 is a new triterpene and compound 2 is isolated from this plant for the first time.
authors: Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China.
authors: Bing-kun
authors: BK
authors: Xiao
authors: Wei-lan
authors: WL
authors: Wang
authors: Rong-qing
authors: RQ
authors: Huang
authors: Jian-yun
authors: JY
authors: Yang
authors: Jun-xing
authors: JX
authors: Dong
mesh_terms: D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D019685:Rosales / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C580842:22-acetyl-21-(2-acetoxy-2-methylbutanoyl)-R1-barrigenol; C580843:3alpha-hydroxyl-20-demethylisoaleuritolic-14(15)-ene-28,30-dioic acid; D014315:Triterpenes