title: Structural characterization of schintrilactone, a new class of nortriterpenoids from Schisandra chinensis.
abstract: Two new nortriterpenoids, designated as schintrilactones A (1) and B (2), with modified five-membered D ring and delta-lactone E ring, were isolated from Schisandra chinensis. Their structures were determined to have a unique carbon skeleton by elucidation of spectroscopic evidence and density functional theory calculations of circular dichroism. Schintrilactones A and B occur as a pair of configurationally unstable and thus slowly interconverting diastereomers.
authors: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People's Republic of China.
authors: Sheng-Xiong
authors: SX
authors: Huang
authors: Jing
authors: J
authors: Yang
authors: Hao
authors: H
authors: Huang
authors: Li-Mei
authors: LM
authors: Li
authors: Wei-Lie
authors: WL
authors: Xiao
authors: Rong-Tao
authors: RT
authors: Li
authors: Han-Dong
authors: HD
authors: Sun
mesh_terms: D019380:Anti-HIV Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018360:Crystallography, X-Ray; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D032141:Schisandra / Q000737:chemistry*; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000145:classification / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D019380:Anti-HIV Agents; D014315:Triterpenes; C524149:schintrilactone A