title: A new synthesis of oxadiazole, thiazolidinone, N-phthalimidoamino carbonyl and arylidene derivatives with potential antimicrobial activity.
abstract: Condensation of carbohydrazide derivatives Ia, b with dimethyl acetylenedicarboxylate and acetylenedicarboxylic acid yielded benzofuran derivatives II a-d. Reaction of Ib with aromatic aldehydes formed products III a-d. Treatment of compounds III a-d with mercaptoacetic acid yielded the cyclocondensation products (IVa-d). Phthalic anhydride reacted with compounds (Ia, b)to form products (Va, b). It has been found that both khellin and visnagin (VIa, b)react with aromatic aldehydes to give arylidene derivatives (VIIa-e). Condensation of diphenyl nitrilamine with 2-arylidene furochromones VII derivatives afforded cyclo-adducts (VIII a-i). The antibacterial activities of the selected compounds were tested against Staphylococcus aureus, B. subtilis, E. coli, Pseudomonas, Salmonella and Erwinia with good results.
authors.affiliation: Department of Chemistry, Faculty of Science, Cairo University, Egypt.
authors.forename: H M
authors.initials: HM
authors.lastname: Hassaneen
authors.forename: S M S
authors.initials: SM
authors.lastname: Atta
authors.forename: N M
authors.initials: NM
authors.lastname: Fawzy
authors.forename: F A
authors.initials: FA
authors.lastname: Ahmed
authors.forename: A G
authors.initials: AG
authors.lastname: Hegazi
authors.forename: F A
authors.initials: FA
authors.lastname: Abdalla
authors.forename: A H
authors.initials: AH
authors.lastname: Abd El Rahman
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D007202:Indicators and Reagents; D007666:Khellin / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D010080:Oxazoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D010797:Phthalimides / Q000138:chemical synthesis* / Q000494:pharmacology*; D013055:Spectrophotometry, Infrared; D013844:Thiazoles / Q000138:chemical synthesis* / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D007202:Indicators and Reagents; D010080:Oxazoles; D010797:Phthalimides; D013844:Thiazoles; D007666:Khellin