title: [Studies on new triterpenoids of Tripterygium regelii].
abstract: Four triterpenoids were isolated from the root of Tripterygium regelii collected in Fusong Prefecture, Jilin Province. III was confirmed as methyl 3-oxo-22 alpha-acetoxy-23-hydroxy-urs-12-ene-30-oate, named regelin C, V and VI were a pair of isomers identified as methyl 3 beta, 22 alpha-dihydroxy-urs-12-ene-30-oate and methyl 3 beta, 22 alpha-dihydroxy-olean-12-ene-29-oate, named regelindiol A and regelindiol B respectively. VII was represented as methyl 3-oxo-22 alpha-hydroxy-olean-12-ene-29-oate, named regelin D. III, V and VII were new compounds, and VI was isolated for the first time as a natural compound.
authors: G M
authors: GM
authors: Pang
authors: C J
authors: CJ
authors: Zhao
authors: H
authors: H
authors: Hori
authors: S
authors: S
authors: Inayama
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D014315:Triterpenes / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D014315:Triterpenes; C053943:regelin; C061354:regelin D; C061355:regelindiol A; C061356:regelindiol B