title: Microwave-assisted synthesis and in-vitro anti-tumor activity of 1,3,4-triaryl-5-N-arylpyrazole-carboxamides.
abstract: Regioselective 1,3-dipolar cycloaddition of nitrilimines with 5-arylidene-2-arylimino-4-thiazolidinones and with 2-(4-arylidene)thiazolo[3,2-a]benzimidazol-3(2H)-ones afforded the corresponding 1,3,4-triaryl-5-N-arylpyrazole-carboxamides and pyrazolylbenzimidazoles. All reactions were carried out under conventional thermal heating and/or microwave irradiation. Both the pyrazole-5-carboxamides and pyrazolylbenzimidazoles were examined for their in-vitro anti-tumor activities against two tumor cell lines, Hep-2 and colon CaCo-2. Most of the obtained compounds exhibited significant activity against CaCo-2 and Hep-2 cell lines.
authors.affiliation: Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
authors.forename: Hatem A
authors.initials: HA
authors.lastname: Abdel-Aziz
authors.forename: Heba S A
authors.initials: HS
authors.lastname: El-Zahabi
authors.forename: Kamal M
authors.initials: KM
authors.lastname: Dawood
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001562:Benzimidazoles / Q000737:chemistry; D018938:Caco-2 Cells; D006801:Humans; D020128:Inhibitory Concentration 50; D008872:Microwaves; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013237:Stereoisomerism; D013379:Substrate Specificity
chemical_list: D000970:Antineoplastic Agents; D001562:Benzimidazoles; D011720:Pyrazoles; C031000:benzimidazole