title: Synthesis and antimicrobial activity of some bis-quinazoline derivatives.
abstract: The hitherto unknown bis[quinazolin-4-one-2-yl]-m-phenylene (2d), and its 3-N-substituted derivatives were prepared from the corresponding bis[3,1-benzoxazin-4-one-2-yl]-m-phenylene (1) as precursor. The quinazolinone derivative 2d was converted into bis[quinazolin-4-thioxo-2-yl]-m-phenylene (3) via different routes, bis[4-chloroquinazolin-2-yl]-m-phenylene (8) and bis[4-hydrazinoquinazolin-2-yl]-m-phenylene (11), respectively. The structures of the compounds 2, 3, 8, and 11 were supported by elemental, spectroscopic analysis as well as, chemical proofs. Biological activities of some of the produced compounds were evaluated.
authors.affiliation: Chemistry Department, Faculty of Science, Ain Shams University, Abbasia, Cairo, Egypt.
authors.forename: S A
authors.initials: SA
authors.lastname: Shiba
authors.forename: A A
authors.initials: AA
authors.lastname: el-Khamry
authors.forename: M E
authors.initials: ME
authors.lastname: Shaban
authors.forename: K S
authors.initials: KS
authors.lastname: Atia
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D005658:Fungi / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D011799:Quinazolines / Q000138:chemical synthesis* / Q000494:pharmacology; D013055:Spectrophotometry, Infrared
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D011799:Quinazolines