Mitomycins

**Definition:** A group of methylazirinopyrroloindolediones obtained from certain Streptomyces strains. They are very toxic antibiotics used as ANTINEOPLASTIC AGENTS in some solid tumors. PORFIROMYCIN and MITOMYCIN are the most useful members of the group.

**Tree numbers:** - D02.806.400.249 - D03.383.097.500 - D03.633.100.473.412.249