title: Hypercohin A, a new polycyclic polyprenylated acylphloroglucinol possessing an unusual bicyclo[5.3.1]hendecane core from Hypericum cohaerens.
abstract: Hypercohin A (1), an unprecedented polycyclic polyprenylated acylphloroglucinol featuring with an unusual bicyclo[5.3.1]hendecane core, was isolated from Hypericum cohaerens. Its structure and absolute configurations were elucidated by extensive NMR methods and crystal X-ray diffractions of its p-bromobenzoate ester (2).
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, P. R. China.
authors.forename: Xing-Wei
authors.initials: XW
authors.lastname: Yang
authors.forename: Xu
authors.initials: X
authors.lastname: Deng
authors.forename: Xia
authors.initials: X
authors.lastname: Liu
authors.forename: Chun-Yan
authors.initials: CY
authors.lastname: Wu
authors.forename: Xiao-Nian
authors.initials: XN
authors.lastname: Li
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Huai-Rong
authors.initials: HR
authors.lastname: Luo
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Hong-Xi
authors.initials: HX
authors.lastname: Xu
authors.forename: Qin-Shi
authors.initials: QS
authors.lastname: Zhao
authors.forename: Gang
authors.initials: G
authors.lastname: Xu