Synthesis of 3-[4′-(p-chlorophenyl)-thiazol-2′-yl]-2-[(substituted azetidinone/thiazolidinone)-aminomethyl]-6-bromoquinazolin-4-ones as anti-inflammatory agent
作者:Ashok Kumar、Chatrasal Singh Rajput、Sudhir Kumar Bhati
DOI:10.1016/j.bmc.2007.01.042
日期:2007.4
N-Chloroacetyl-5-bromoanthranilic acid (1), 3-[4'-(p-chlorophenyl)-thiazol-2'-yl]-2-chloromethyl-6-bromoquinazolin-4-one (2), 3-[4'-(p-chlorophenyl)-thiazol-2'-yl]-2-hydrazinomethyl-6-bromoquinazolin-4-one (3), 3-[4'-(p-chlorophenyl)-thiazol-2'-yl]-2- substituted benzylidene aminomethyl-6-bromoquinazolin-4-ones (4-11), 2-[(4'-oxo-3'-chloro-2'-phenylazetidin-l'-yl)aminomethyl]-3 -[4"-(p-chlorophenyl)thiazo1-2"-yl]-6-bromoquinazolin-4-ones (12-19) and 2-(4'-oxo-2'-phenyl-thiazolidin-3'-yl-aminomethyl)3-[4"-(p-chlorophenyl)-thiazol-2"-yl]-6-bromoquinazolin-4-ones (20-27) have been synthesized. All the compounds have been screened for their anti-inflammatory and analgesic activities at the dose of 50 mg/kg po. Compound 21 showed maximum anti-inflammatory (38.35%) and analgesic (37.36%) activities. Compound 21 was also tested for ulcerogenic activity and the UD50 value was found to be 195.6 mg/kg po. The structure of all compounds has been evaluated by elemental analysis (C, H, N) and spectral analysis (IR, H-1 NMR and mass spectrometry). (c) 2007 Published by Elsevier.