New coumermycin A1-derivative, useful as biologically active substance and as antibiotics or cytostatics, and for preventing diseases caused by bacteria or tumor

摘要

Coumermycin A1-derivative (I), is new. Coumermycin A1-derivative of formula (I), is new. R1, R2 : CH 3, halo or H, preferably H, F, Cl, Br or I, where both R1, R2 are not simultaneously CH 3. An independent claim is included for preparing (I). [Image] ACTIVITY : Antibacterial; Cytostatic. MECHANISM OF ACTION : None given.