title: Alkaloids and flavonoids of Argemone mexicana.
abstract: A new protopine alkaloid, protomexicine and a new isoflavonoid, mexitin, together with 8-methoxydihydrosanguinarine, 13-oxoprotopine, rutin and quercetrin have been isolated from the aerial part of the methanolic extract of Argemone mexicana. The structures of these compounds have been established by various spectral data. The structure of protomexicine was further confirmed by heteronuclear multiple bond correlation experiment. Protomexicine and mexitin are new compounds, and other compounds are first reported from A. mexicana and genus Argemone.
authors: Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, India.
authors: Sarita
authors: S
authors: Singh
authors: Vidya Bhushan
authors: VB
authors: Pandey
authors: Tryambak Deo
authors: TD
authors: Singh
mesh_terms: D000470:Alkaloids / Q000032:analysis* / Q000737:chemistry; D031674:Argemone / Q000737:chemistry*; D002247:Carbon Isotopes; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D007194:India; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives / Q000032:analysis
chemical_list: D000470:Alkaloids; D002247:Carbon Isotopes; D005419:Flavonoids; D010936:Plant Extracts; C012526:quercitrin; D011794:Quercetin