title: Studies on the constituents of Broussonetia species X. Six new alkaloids from Broussonetia kazinoki Sieb.
abstract: Six new alkaloids, broussonetines W, X, M1, U1, J3, and J2 (1-6) were isolated from the branches of Broussonetia kazinoki SIEB. (Moraceae) as minor constituents. They were formulated as (2R,3R,4R,5R)-2-hydroxy-methyl-3,4-dihydroxy-5-17-(cyclohexy-2-on-1(6)-enyl)heptyllpyrrolidine (1), (2R,3S,4R,5R)-2-hydroxymethyl-3,4-dihydroxy-5-17-(cyclohexy-2-on-1(6)-enyl)heptyl]pyrrolidine-4-O-beta-D-glucopyranoside (2), (2R,3R,4R,5R)-2-hydroxymethyl-3,4-dihydroxy-5-[(9R)-9,13-dihydroxytridecyl]- pyrrolidine (3), (2S,3S,4S)-2-hydroxymethyl-3,4-dihydroxy-5-(10-oxo-13-hydroxytridecyl)-5- pyrroline (4), (2R)-2-[(IS,2S)-1,2-dihydroxy-8-1(2R,3R,4R,5R)-5-(2-hydroxymethyl-3,4-dihydroxy-1-acetylpyrrolidinyl)loctyl]piperidine (5), (2R)-2-[(1S,2S)-1,2-dihydroxy-8-[(2R,3R, 4R,5R)-5-(2-hydroxymethy]-3,4-dihydroxypyrrolidinyl)]octyl]piperidine (6).
authors.affiliation: Osaka University of Pharmaceutical Sciences, Takatsuki, Japan.
authors.forename: D
authors.initials: D
authors.lastname: Tsukamoto
authors.forename: M
authors.initials: M
authors.lastname: Shibano
authors.forename: G
authors.initials: G
authors.lastname: Kusano
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D029586:Moraceae / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018520:Plant Shoots / Q000737:chemistry; D011759:Pyrrolidines / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000470:Alkaloids; D010936:Plant Extracts; D011759:Pyrrolidines