Pibrozelesin

**Semantic type:** Antibiotic|Organic Chemical|Pharmacologic Substance

**Definition:** A semisynthetic water-soluble derivative of the antineoplastic antibiotic duocarmycin B2. Activated by carboxyl esterase, pibrozelesin alkylates DNA by binding to adenine-thymine (A-T)-rich sequences in the minor groove of DNA, thereby inhibiting DNA replication and inducing apoptosis.

**Synonyms:** - Benzo(1,2-b:4,3-b')dipyrrole-1-carboxylic Acid, 8-(bromomethyl)-3,6,7,8-tetrahydro-2-methy-4-(((4-methyl-1-piperazinyl)carbonyl)oxy)-6-((5,6,7,-trimethoxy-1H-indol-2-yl)carbonyl)-, Methyl Ester (S) - Duocamycin B2 Analog - KW 2189 - KW-2189 - KW2189 - PIBROZELESIN