title: Polyacetylated labdane-type diterpenoids, ptychantins P-R from Chinese liverwort Ptychanthus striatus.
abstract: Three new polyacetylated labdane diterpenoids ptychantins P-R (1-3) and four known compounds (4-7) were isolated from an EtOH extract of the Chinese liverwort Ptychanthus striatus (Lehm. & Lindenb.) Nees. Their structures were established by extensive analysis of spectroscopic data (IR, UV, HRESIMS, 1D NMR, and 2D NMR).
authors: a Department of Natural Products Chemistry , Key Lab of Chemical Biology of Ministry of Education, Shandong University , Jinan 250012 , China.
authors: Jing-Yi
authors: JY
authors: Wu
authors: Jiao-Zhen
authors: JZ
authors: Zhang
authors: Ya-Qi
authors: YQ
authors: Kang
authors: Xiao
authors: X
authors: Wang
authors: Pei-Hong
authors: PH
authors: Fan
authors: Jin-Chuan
authors: JC
authors: Zhou
authors: Hong-Xiang
authors: HX
authors: Lou
mesh_terms: D002681:China; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D035926:Hepatophyta / Q000737:chemistry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
chemical_list: D004224:Diterpenes; C000601881:ptychantin P; C000601882:ptychantin Q; C000601883:ptychantin R
keywords: Ptychanthus striatus; labdane diterpenoids; liverwort; ptychantin