title: New labdane diterpenoids from Hyptis fasciculata.
abstract: Two new labdane diterpenoids, 15beta-methoxyfaciculatin (1) and 15alpha-methoxyfaciculatin B (2), together with the previously known methoxynepetaefolin (3), were isolated from a methanol extract of the dried aerial parts of a Brazilian medicinal plant, Hyptis faciculata. Their structures were elucidated by analysis of spectroscopic data. Plausible biogenetic correlation between faciculatins and nepetaefolin is briefly discussed.
authors.affiliation: Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Japan. fukuyama@ph.bunri-u.ac.jp
authors.forename: Ayumi
authors.initials: A
authors.lastname: Ohsaki
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Kishimoto
authors.forename: Takahiko
authors.initials: T
authors.lastname: Isobe
authors.forename: Yoshiyasu
authors.initials: Y
authors.lastname: Fukuyama
mesh_terms: D001938:Brazil; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D004224:Diterpenes / Q000737:chemistry*; D031331:Hyptis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol; D008969:Molecular Sequence Data; D010936:Plant Extracts / Q000032:analysis; D012997:Solvents; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: C507955:15beta-methoxyfaciculatin; D004224:Diterpenes; D010936:Plant Extracts; D012997:Solvents; D000432:Methanol