A series of bisbenzaldehydes and structurally related analogs, conveniently synthesized via microwave-assisted reactions, were evaluated in vitro against drug susceptible and multi- drug resistant Mycobacterium tuberculosis, against virulent Mycobacterium bovis, against Mycobacterium ulcerans and against two Mycobacterium avium subspecies. Among the 33 substances that were tested, compound 12, ie 4, 4′-[1, 12-dodecanediyl (oxy)] ...