A series of novel N-methyl-substituted pyrazole carboxamide (10–17) and dicarboxamide derivatives (18–21) were efficiently obtained by the reaction of pyrazole-3-carboxylic acids (4,5) and pyrazole-3,4-dicarboxylic acid (8) with several aromatic and heteroaromatic sulfonamides. Synthesized sulfonamide derivatives were characterized using 1H NMR, 13C NMR, FT-IR, mass spectroscopy techniques. Antiproliferative