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Part-IIIResults and DiscussionUsing Biginelli protocol following hybridized DHPM derivatives has been synthesized.Table-44. Physical data of the newly synthesized derivativesROHNXNH(VIIi-xxx)S. No R X MolFormula(Sol. of Recryst.)VIIi O C 18 H 16 N 2 O 2(E)VIIiiClO C 18 H 15 ClN 2 O 2(E)M.P.( o C)IR (cm -1 )(KBr)190-192 3269(γ NH ),2915(γ C-H ),1710(γ CO ),1680(γ CONH ).228-230 3307(γ NH ),1706(γ CO ),1677(γ CONH ),1586(γ CH ).Mass(m/e)NMR (δppm)(DMSO-d 6 )-- --326[M + ],311, 215,185.1.72 (s, 3H, CH 3 ), 5.46 (d, 1H, H at 4, J = 2.96), 7.34(br, s, 1H, NH of 1), 7.22-7.49 (m, 9H, Ar-H), 8.94 (s,1H, NH at 3).VIIiiiVIIivClClO C 18 H 15 ClN 2 O 2(E)O C 18 H 15 ClN 2 O 2(E)214-216 3273(γ NH ),1712(γ CO ),1674(γ CONH ),1600(γ CH ).248-250 3284(γ NH ),2951(γ CH ),1650(γ CONH ).326[M + ],311, 307,291, 215,185.1.72 (s, 3H, CH 3 ), 5.43 (d, 1H, H at 4, J = 3.04), 7.59(br, s, 1H, NH at 1), 7.17-7.50 (m, 9H, Ar-H), 9.06 (s,1H, NH at 3).-- 1.79 (s, 3H, CH 3 ), 5.87 (d, 1H, H at 4, J = 2.56), 7.02(br, s, 1H, NH at 1), 7.19-7.50 (m, 9H, Ar-H), 9.04 (s,1H, NH at 3).IIv O C 26 H 20 N 2 O 2(E)232-234 2986(γ CH ),1652(γ CONH ).-- --457