| abstract |
Novel compounds of the general formula In n Actinomadura melliaura nov. sp. (ATCC 39691) produces four novel compounds which have been designated AT 2433 A 1 , AT 2433 A 2 , AT 2433 B, and AT 2433 B 2 . The novel compounds or pharmaceutically acceptable salts thereof exhibit antibacterial and antitumor activity. |