title: A furanocoumarin and polymethoxylated flavonoids from the Yucatec Mayan plant Casimiroa tetrameria.
abstract: As part of an ongoing study of the medicinal plants of the Yucatec Maya, Casimiroa tetrameria was investigated for its phytochemistry. From an ethyl acetate partition of an ethanol extract of the leaves, eight flavonoids and a furanocoumarin were isolated and characterised as 5,6,2',3',5',6'-hexamethoxyflavone, 5,6,2',3',6'-pentamethoxyflavone and 5-methoxy-8-(3''-hydroxymethyl-but-2''-enyloxy)-psoralen using a combination of 1H, 13C NMR and NOESY spectroscopy.
authors.affiliation: Institute of Pharmaceutical Biology, Stefan-Meier-Str. 19, Albert-Ludwigs University, 79104 Freiburg, Federal Republic of Germany.
authors.forename: Bilkis
authors.initials: B
authors.lastname: Heneka
authors.forename: Horst
authors.initials: H
authors.lastname: Rimpler
authors.forename: Anita
authors.initials: A
authors.lastname: Ankli
authors.forename: Otto
authors.initials: O
authors.lastname: Sticher
authors.forename: Simon
authors.initials: S
authors.lastname: Gibbons
authors.forename: Michael
authors.initials: M
authors.lastname: Heinrich
mesh_terms: D032081:Casimiroa / Q000737:chemistry*; D005363:Ficusin / Q000302:isolation & purification*; D047309:Flavones / Q000302:isolation & purification*; D008800:Mexico; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: C501187:5,6,2',3',5',6'-hexamethoxyflavone; C501188:5,6,2',3',6'-pentamethoxyflavone; C501189:5-methoxy-8-(3''-hydroxymethyl-but-2''-enyloxy)-psoralen; D047309:Flavones; D005363:Ficusin