Synthesis and antimicrobial activity of 1H,10H-benzo[e]pyrrolo[3,2-g]indole derivatives

We have synthesized a series of new phenylazo derivatives of 1H,10H-benzo[e]pyrrolo[3, 2-g]indole containing 3-(p-bromophenylazo) (II), 3-(p-iodophenylazo) (III), 3-(p-sulfamidophenylazo) (IV), 3-formyl (V), 3,8-diformyl (VI), 3-phenylazo (VII), 3-(p-chlorophenylazo) (VIII), 3-(p-nitrophenylazo) (IX), 2,9-di(adamantylaminocarbonyl) (X), 2,9-di(p-benzenesulfamidoaminocarbonyl) (XI), 2,9-di(isonicotinoylhydrazidecarbonyl) (XII), and 2,9-di(carbohydrazide) (XIII) substituents. The antimicrobial, antifungal, and antituberculosis activity was investigated in vitro with respect to various microorganisms including conditionally pathogenic mycobacteria and pathogenic fungi. It is established that the tested compounds possess high antimicrobial activity. The synthesized compounds are of great interest for further, more thorough investigations and experiments on animals with the corresponding infectious diseases.