title: Structures of new sesquiterpenoids from Farfarae Flos.
abstract: Two new bisabolane-type sesquiterpenoids, (3R,4R,6S)-3,4-epoxybisabola-7(14),10-dien-2-one and (1R,3R,4R,5S,6S)-1-acetoxy-8-angeloyloxy-3,4-epoxy-5-hydroxybisabola-7(14),10-dien-2-one, and a new oplopane-type sesquiterpenoid, 14(R)-hydroxy-7beta-isovaleroyloxyoplop-8(10)-en-2-one, were isolated from Farfarae Flos along with three known compounds. The structures of these compounds were elucidated on the basis of spectroscopic evidence.
authors.affiliation: Tohoku Pharmaceutical University, Sendai, Miyagi, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yaoita
authors.forename: N
authors.initials: N
authors.lastname: Suzuki
authors.forename: M
authors.initials: M
authors.lastname: Kikuchi
mesh_terms: D000107:Acetylation; D019659:Asteraceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D012717:Sesquiterpenes