Antibiotics designated as BM 782 alpha 1, BM 782 alpha 2 and BM 782 alpha 1a, process for their preparation and pharmaceutical compositions containing them.

摘要

This invention relates to three new antibiotics which are designated BM782 alpha 1, BM782 alpha 2, and BM782 alpha 1a, respectively, and which are produced in a microbiological fermentation under controlled conditions using a new strain of an undetermined species of the genus Nocardia or mutants thereof. These new antibacterial agents are active against Mycobacterium tuberculosis as well as both gram-positive and gram-negative microorganisms and thus are potentially useful for inhibiting the growth of such bacteria and bacilli.