title: Microwave-assisted, solvent-free and parallel synthesis of some novel substituted imidazoles of biological interest.
abstract: Solvent free microwave assisted synthesis of some novel substituted imidazoles of biological interest is reported. First, primary aromatic or heteryl amine was condensed with aryl or heteryl aldehydes to afford corresponding Schiff's base. The Schiff's base further on treatment with ammonium acetate (NH(4)OAC) and isatin using silica gel as the solid support, yielded the corresponding aryl imidazoles. In this paper a comparative study between the developed microwave method and conventional method is described. The synthesized compounds were analyzed by physical and analytical data. The synthesized compounds were evaluated for their antibacterial, anthelmintic, short-term anticancer and antitubercular activity. All the synthesized substituted imidazoles have shown good antibacterial activity against gram negative bacterial strains Klebsiella pneumoniae and Escherichia coli and moderate to good anthelmintic activity. The synthesized imidazole derivative possessed significant cytotoxic activity against Ehrlich's ascites carcinoma (EAC) cell lines. None of the compounds exhibited prominent antitubercular activity.
authors.affiliation: Department of Pharmaceutical Chemistry, Rajiv Academy for Pharmacy, Uttar Pradesh, India. gyane007@indiatimes.com
authors.forename: Gyanendra Kumar
authors.initials: GK
authors.lastname: Sharma
authors.forename: Devender
authors.initials: D
authors.lastname: Pathak
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D007093:Imidazoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D051379:Mice; D008826:Microbial Sensitivity Tests; D008872:Microwaves; D015394:Molecular Structure; D009835:Oligochaeta / Q000187:drug effects*; D021261:Parasitic Sensitivity Tests; D013237:Stereoisomerism; D013329:Structure-Activity Relationship
chemical_list: D000871:Anthelmintics; D000900:Anti-Bacterial Agents; D000970:Antineoplastic Agents; D007093:Imidazoles