title: Dichotomains A and B: two new highly oxygenated phenolic derivatives from Dicranopteris dichotoma.
abstract: [structure: see text] Dichotomains A (1) and B (2), two new highly oxygenated phenolic derivatives that feature a spirodilactone moiety in their structures, were isolated from the fronds of Dicranopteris dichotoma. Their structures were elucidated on the basis of NMR and MS spectroscopic data, and the stereochemistry of 1 was finally determined by single-crystal X-ray diffraction. Compound 2 showed weak anti-HIV-1 activity.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, PRC.
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Li
authors.forename: Xiao
authors.initials: X
authors.lastname: Cheng
authors.forename: Liu-Meng
authors.initials: LM
authors.lastname: Yang
authors.forename: Rui-Rui
authors.initials: RR
authors.lastname: Wang
authors.forename: Yong-Tang
authors.initials: YT
authors.lastname: Zheng
authors.forename: Wei-Lie
authors.initials: WL
authors.lastname: Xiao
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhao
authors.forename: Gang
authors.initials: G
authors.lastname: Xu
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Ying
authors.initials: Y
authors.lastname: Chang
authors.forename: Qi-Tai
authors.initials: QT
authors.lastname: Zheng
authors.forename: Qin-Shi
authors.initials: QS
authors.lastname: Zhao
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
mesh_terms: D019380:Anti-HIV Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002681:China; D018360:Crystallography, X-Ray; D029624:Ferns / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013141:Spiro Compounds / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D019380:Anti-HIV Agents; D010636:Phenols; D013141:Spiro Compounds; C516281:dichotomain A; C516282:dichotomain B