title: Benhamycin, novel alkaloid from terrestrial Streptomyces sp.
abstract: During our screening for bioactive natural compounds from microorganisms, a novel alkaloid has been isolated from a terrestrial Streptomyces sp. isolate NR12, and named as benhamycin (1). This was along with the known metabolites, uracil, thymine, p-hydroxybenzoic acid, 2'-deoxyuridin, tryptophol, indolyl-3-carboxylic acid, and indolyl-3-carbaldehyde. Chemical structure of the novel compound was determined by detailed analysis of its spectroscopic data (extensive NMR experiments, 1 & 2D, MS spectroscopy, and MS high resolution). Structurally, Benhamycin (1) is a pentacyclic aromatic compound bearing an acridine moiety lactamized with benzene. Biological studies showed that the strain extract was moderately active against Gram-positive, Gram-negative bacteria and fungi.
authors.affiliation: Department of Chemistry of Natural Compounds, Division of Pharmaceutical Industries, National Research Centre, Dokki-Cairo, Egypt. mshaaba@yahoo.com
authors.forename: Mohamed
authors.initials: M
authors.lastname: Shaaban
authors.forename: Mohamed S
authors.initials: MS
authors.lastname: Abdel-Aziz
mesh_terms: D000166:Acridines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D001234:Aspergillus niger / Q000187:drug effects; D001412:Bacillus subtilis / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D019906:Nuclear Magnetic Resonance, Biomolecular; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013302:Streptomyces / Q000737:chemistry*
chemical_list: D000166:Acridines; D000470:Alkaloids; D000900:Anti-Bacterial Agents; D000935:Antifungal Agents