title: Isolation and identification of two new flavanones and a chalcone from Citrus kinokuni.
abstract: Two new flavanones and one chalcone were isolated from the peel of Citrus kinokuni Hort. ex Tanaka and identified as (2S)-5,6,7,8,4'-pentamethoxyflavanone (1), (2S)-5,6,7,3',4'-pentamethoxyflavanone (2) and 2'-hydroxy-3,4,3',4',6'-pentamethoxychalcone (3). The structures of new compounds were elucidated by spectroscopic analysis.
authors.affiliation: Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Hyogo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Iwase
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
authors.forename: Y
authors.initials: Y
authors.lastname: Takemura
authors.forename: M
authors.initials: M
authors.lastname: Ju-ichi
authors.forename: C
authors.initials: C
authors.lastname: Ito
authors.forename: H
authors.initials: H
authors.lastname: Furukawa
authors.forename: M
authors.initials: M
authors.lastname: Yano
mesh_terms: D002599:Chalcone / Q000031:analogs & derivatives / Q000737:chemistry*; D047188:Chalcones; D002957:Citrus / Q000737:chemistry*; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D013056:Spectrophotometry, Ultraviolet
chemical_list: C450643:(2)-5,6,7,8,4'-pentamethoxyflavanone; C450644:2'-hydroxy-3,4,3',4',6'-pentamethoxychalcone; D047188:Chalcones; D044950:Flavanones; D005419:Flavonoids; D007202:Indicators and Reagents; D002599:Chalcone