Synthesis of novel N-(3-chloro-4-flurophenyl)-2-(5-((3-(4-hydroxy-2, 2-dimethyl-2, 3-dihydrobenzofuran-5-yl)-1-phenyl-1H-pyrazol-4-yl) methylene)-4-oxo-2-thioxothiazolidin-3-yl) acetamides having anti-inflammatory activity

Eight derivatives of N-(3-chloro-4-fluorophenyl)-2-(5-((3-(4-hydroxy-2, 2-dimethyl l-2,3-dihydrobenzofuran-5-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl) acetamide were synthesized by reacting pyrazole having substitutions at 1 and 3 positions (phenyl and benzofuran) with various substituted N-(3-chloro-4-fluorophenyl)-2-(4-oxo-2-thioxothiazolidin-3-yl)acetamides.The series of reactions are depicted in following scheme. The chemical structures of these compounds were confirmed by means of ¹H NMR, IR and Mass spectra. The compounds were assayed for anti-inflammatory activity.

Among the compounds 10a, 10b and 10d showed significant anti-inflammatory activity, 10c showed moderate anti-inflammatory activity.