title: [The isolation and identification of qianhucoumarin B and qianhucoumarin C from Peucedanum praeruptorum].
abstract: Five compounds were isolated from the traditional Chinese medicine Qianhu, roots of Peucedanum praeruptorum. Their structures were identified as 3'-angeloyloxykhellactone (IX), qianhucoumarin B (X), qianhucoumarin C (XI), Pd-III (XIII) and peucedanocoumarin III (XV). Among them, X and XI are new compounds, their absolute configurations were elucidated by chemical correlation with khellactones, as 3'(S)-acetoxy-4'(S)-hydroxy-3',4'-dihydroseselin(X) and 3'(S)-hydroxy-4'(S)-acetoxy-3',4'-dihydroseselin (XI). Compound IX was isolated from plants for the first time.
authors.affiliation: Research Department of Natural Drugs, Shenyang College of Pharmacy.
authors.forename: L Y
authors.initials: LY
authors.lastname: Kong
authors.forename: Y H
authors.initials: YH
authors.lastname: Pei
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: S X
authors.initials: SX
authors.lastname: Wang
authors.forename: B L
authors.initials: BL
authors.lastname: Hou
authors.forename: T R
authors.initials: TR
authors.lastname: Zhu
mesh_terms: D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D003374:Coumarins; D004365:Drugs, Chinese Herbal; C087795:qianhucoumarin C; C087794:qianhucoumarin B