Synthesis, Characterization and Antibacterial Screening of Some Novel Compounds containing Multi N-Fused Heterocycles

An attempt has been made to synthesize novel multi N-fused heterocyclic compounds containing four divergent heterocyclic compounds such as imidazole, pyrimidine, morpholine and indole. A series of N-(4-(1H-benzo[d]imidazol-2-yl)-6-phenylpyrimidin-2-yl)-2-(4-((E)-3-(2-morpholino-9H-pyrido[2,3-b]indol-3-yl)acryloyl)phenylamino)acetamide (6a-c) was accomplished in good yields with 1-(1H-benzo-[d]imidazol-2-yl)ethanone (1) as starting compound and through the formation of (E)-1-(1H-benzo[d]imidazol-2-yl)-3-phenylprop-2-ne-1-ones (2a-c), 4-(1H-benzo[d]imidazol-2-yl)-6-phenylpyrimidin-2-amines (3a-c) and N-(4-(1H-benzo[d]imidazol-2-yl)-6-phenylpyrimidin-2-yl)-2-chloroacetamides (4a-c) as intermediates on extension of the reaction. The structural elucidation of all the synthesized compounds were characterized by IR, 1H NMR, mass spectral data and elemental analysis. Further, the title compounds were also used to evaluate their antibacterial activity.