title: Highly oxygenated labdane-type diterpenoids, ptychantins from cultured cells of the Ptychantus striatus liverwort.
abstract: One novel labdane-type diterpene, named ptychantin O, and two known diterpenes, ptychantin G and F, were isolated from cultured cells of the Phychanthus striatus liverwort, and their structures were determined by NMR spectroscopic analyses.
authors.affiliation: Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine, Japan.
authors.forename: Teppei
authors.initials: T
authors.lastname: Kawahara
authors.forename: Kenji
authors.initials: K
authors.lastname: Katoh
authors.forename: Kensuke
authors.initials: K
authors.lastname: Nabeta
mesh_terms: D002478:Cells, Cultured; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D035926:Hepatophyta / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010100:Oxygen / Q000737:chemistry*
chemical_list: D004224:Diterpenes; D010100:Oxygen