title: (+)- and (-)-syn-2-isobutyl-4-methylazetidine-2,4-dicarboxylic acids from the extract of Monascus pilosus-fermented rice (red-mold rice).
abstract: The structures of two enantiomeric azetidine-type amino acids isolated from the n-butanol-soluble fraction of the 70% ethanol extract of red-mold rice fermented with Monascus pilosus were established to be (+)- [1; (+)-monascumic acid] and (-)-syn-2-isobutyl-4-methylazetidine-2,4-dicarboxylic acids [2; (-)-monascumic acid] based on spectroscopic methods.
authors.affiliation: College of Science and Technology, Nihon University, 1-8 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Akihisa
authors.forename: Shoichi
authors.initials: S
authors.lastname: Mafune
authors.forename: Motohiko
authors.initials: M
authors.lastname: Ukiya
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Kimura
authors.forename: Ken
authors.initials: K
authors.lastname: Yasukawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Suzuki
authors.forename: Harukuni
authors.initials: H
authors.lastname: Tokuda
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Tanabe
authors.forename: Tadahiko
authors.initials: T
authors.lastname: Fukuoka
mesh_terms: D003998:Dicarboxylic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005285:Fermentation; D015394:Molecular Structure; D032741:Monascus / Q000737:chemistry*; D012275:Oryza; D013237:Stereoisomerism
chemical_list: D003998:Dicarboxylic Acids; C484932:monascumic acid