title: Synthesis and evaluation of antimicrobial activity of novel hydrazino and N-benzylidinehydrazino-substituted 4,8-dihydro-1H,3H-pyrimido[4,5-d]pyrimidin-2,7-dithiones.
abstract: A number of novel pyrimido[4,5-d]pyrimidine-2,7-dithone derivatives bearing hydrazino and N-benzylidinehydrazino substitution were efficiently synthesized and screened for in vitro antibacterial activities against the representative panel of three Gram-positive and two Gram-negative bacteria. All the synthesized compounds showed the potent inhibitory action against Gram-positive bacteria. Particularly, N-benzylidinehydrazino-substituted compounds imparted profound effect. Furthermore, the Connolly-accessible surface area values were also calculated for the target compounds and correlated with the expressed biological activity.
authors.affiliation: School of Chemical Sciences, Devi Ahilya University, Takshila Campus, Indore, India. drpratibhasharma@yahoo.com
authors.forename: Pratibha
authors.initials: P
authors.lastname: Sharma
authors.forename: Nilesh
authors.initials: N
authors.lastname: Rane
authors.forename: Priti
authors.initials: P
authors.lastname: Pandey
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D004176:Dipyridamole / Q000031:analogs & derivatives / Q000138:chemical synthesis* / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D006094:Gram-Positive Bacteria / Q000187:drug effects / Q000254:growth & development; D006834:Hydrazines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D008826:Microbial Sensitivity Tests / Q000379:methods; D008956:Models, Chemical; D008958:Models, Molecular; D015394:Molecular Structure; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000254:growth & development; D013329:Structure-Activity Relationship
chemical_list: D000890:Anti-Infective Agents; D006834:Hydrazines; D004176:Dipyridamole