title: [New monoterpenoids from Cynanchum hancockianum].
abstract: Five monoterpenoids have been isolated from the roots of Cynanchum hancockianum (Maxim) AI. Iljinski. Their structures were determined on the basis of spectral evidence. The three new compounds are: 4-p-menthane-1,7,8-triol (III), neohancoside A (IV), neohancoside B (V), and the two knowns: 4-p-menthene-1-8, 9-diol (I), and 4-p-menthane-1,8, 9-triol (II). Compound V was purified by acetylation.
authors.affiliation: Research Department of Natural Drugs, Shenyang College of Pharmacy.
authors.forename: H X
authors.initials: HX
authors.lastname: Lou
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: T R
authors.initials: TR
authors.lastname: Zhu
mesh_terms: D000081005:Cyclohexane Monoterpenes; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D008610:Menthol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D000081005:Cyclohexane Monoterpenes; D004365:Drugs, Chinese Herbal; D013729:Terpenes; C079974:neohancoside A; C079976:4-menthane-1,7,8-triol; C079975:neohancoside B; D008610:Menthol