title: Skeleton Reassignment of Type C Polycyclic Polyprenylated Acylphloroglucinols.
abstract: The previous assignment of the type C skeleton of polycyclic polyprenylated acylphloroglucinols (PPAPs) was controversial and proved to be incorrect in this study. The structures of the type C PPAPs (3-6) were revised to corresponding type A structures (3a-6a) via13C NMR spectroscopic analysis and a quantum computational chemistry method. Therefore, only types A and B PPAPs are likely present in plants of the family Clusiaceae.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China.
authors.forename: Xing-Wei
authors.initials: XW
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China.
authors.forename: Gang
authors.identifier: 0000-0001-7561-104X
authors.initials: G
authors.lastname: Xu
mesh_terms: D028084:Clusiaceae / Q000737:chemistry*; D020902:Hypericum / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010696:Phloroglucinol / Q000031:analogs & derivatives / Q000737:chemistry* / Q000302:isolation & purification; D011083:Polycyclic Compounds / Q000737:chemistry*
chemical_list: D011083:Polycyclic Compounds; D010696:Phloroglucinol