title: Highly oxygenated ent-pimarane-type diterpenoids from the Chinese liverwort Pedinophyllum interruptum and their allelopathic activities.
abstract: Ten highly oxygenated ent-pimarane-type diterpenoids, pedinophyllols A-J (1-10), were isolated from the Chinese liverwort Pedinophyllum interruptum. Their structures were determined by comprehensive analysis of spectroscopic data together with single-crystal X-ray diffraction analysis. The absolute configurations were elucidated by comparison of experimental and theoretically calculated electronic circular dichroism spectra. Allelopathic testing showed that several new diterpenoids inhibited germination of Arabidopsis thaliana seeds.
authors.affiliation: Department of Natural Products Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , No. 44 West Wenhua Road, Jinan 250012, People's Republic of China.
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.forename: Rui-Juan
authors.initials: RJ
authors.lastname: Li
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Wang
authors.forename: Rong-Xiu
authors.initials: RX
authors.lastname: Zhu
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Zhao-Min
authors.initials: ZM
authors.lastname: Lin
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hong-Xiang
authors.initials: HX
authors.lastname: Lou
mesh_terms: D045784:Abietanes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D017360:Arabidopsis / Q000187:drug effects / Q000254:growth & development; D002942:Circular Dichroism; D018360:Crystallography, X-Ray; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D035926:Hepatophyta / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010100:Oxygen / Q000737:chemistry; D012639:Seeds / Q000187:drug effects / Q000254:growth & development
chemical_list: D045784:Abietanes; D004365:Drugs, Chinese Herbal; C433018:pimarane; D010100:Oxygen