Synthesis and Anticancer Activity of 3a,4-dihydro-3H-indeno[1, 2-c]pyrazole-2-carboxamide Analogues

A series of 3-substituted-N-aryl-6,7-dimethoxy-3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide analogues were synthesized and characterized by IR, NMR and elemental analysis. All the compounds were screened for anticancer activity as per National Cancer Institute (NCI US) Protocol on leukemia, melanoma, lung, colon, CNS, ovarian, renal, prostate and breast cancers cell lines. The compound 3-(4-fluorophenyl)-N-(2,6-dimethylphenyl)-6,7- dimethoxy-3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide (4h) was found to be the most active compound of the series highly active on Leukemia K-562 and SR cell line [Growth Percent (GP) &equals 26.95 and 33.45 respectively]. The molecular docking mode for compound, 3-(4-Fluorophenyl)-N-(2,6-dimethylphenyl)-6,7-dimethoxy-3a,4-dihydro-3Hindeno[ 1,2-c]pyrazole-2-carboxamide (4h) showed efficient binding with EGFR tyrosine kinase.