title: New bis-secolabdane diterpenoids from Excoecaria agallocha.
abstract: Two new bis-secolabdane diterpenoids, excoecarins R1 (1) and R2 (2), were isolated from the resinous wood of Excoecaria agallocha. The structures of 1 and 2 were established on the basis of spectroscopic data interpretation and chemical evidence.
authors.affiliation: Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan. konish@mb.kyoto-phu.ac.jp
authors.forename: Tenji
authors.initials: T
authors.lastname: Konishi
authors.forename: Kiyonori
authors.initials: K
authors.lastname: Yamazoe
authors.forename: Takao
authors.initials: T
authors.lastname: Konoshima
authors.forename: Takashi
authors.initials: T
authors.lastname: Maoka
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Fujiwara
authors.forename: Kazumoto
authors.initials: K
authors.lastname: Miyahara
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D019665:Euphorbiaceae / Q000737:chemistry*; D006868:Hydrolysis; D007564:Japan; D015394:Molecular Structure; D010084:Oxidation-Reduction; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013237:Stereoisomerism; D014934:Wood
chemical_list: D004224:Diterpenes; C474553:excoecarin R1; C474554:excoecarin R2