title: Transtorine, a new quinoline alkaloid from Ephedra transitoria.
abstract: Transtorine (1), a new quinoline alkaloid, isolated from the aerial part of Ephedra transitoria by column chromatography, was identified as 4-quinolone-2-carboxylic acid. The structure was determined by spectroscopic methods. Transtorine exhibited growth inhibitory activity against the common bacteria, Enterobacter cloacae, Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus.
authors.affiliation: Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman, Jordan.
authors.forename: S
authors.initials: S
authors.lastname: al-Khalil
authors.forename: A
authors.initials: A
authors.lastname: Alkofahi
authors.forename: D
authors.initials: D
authors.lastname: el-Eisawi
authors.forename: A
authors.initials: A
authors.lastname: al-Shibib
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D007736:Kynurenic Acid / Q000302:isolation & purification* / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: C111687:4-quinolone-2-carboxylic acid; D000900:Anti-Bacterial Agents; D007736:Kynurenic Acid