Thiazole derivatives are the heterocyclic compounds with very important biological activities such as anti inflammatory, antibacterial, antiviral, It K inhibiting, PI3K inhibiting, NF-kb inhibiting activities etc. substituted 4-phenyl -1, 3- thiazole moiety was synthesised by cyclo condensation reaction between substituted benzoyl thiourea derivatives and ethylchloro acetate. These derivatives on hydrolysis produced the desired final compounds. Also energy minimization of proposed structure was done which gives the distance between different functional groups of basic moiety, which is identical to the reference compound. These compounds were screened for in vivo antiinflammatory activity by carrageen induced rat paw edema method.