Novel toluidine derivatives are described. Some of them showed an interesti
ng in vitro activity against Mycobacterium tuberculosis, M. smegmatis, M. m
arinum, M. gordonae, and M. avium. Some of them were more active than Strep
tomycin and Isoniazid, which were used as controls, against M. avium and M.
gordonae. In particular, we confirm the good activity of biphenyl derivati
ves. (C) 1999 Elsevier Science S.A. All rights reserved.