Multiple choice

Busulfan is a well known anticancer agent. Its mode of action is

  1. alkylating agent

  2. Chain-terminator

  3. Intercalator

  4. Demethylating agent, 5-azacytidine

  5. Maturation inhibitors

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A Correct answer
Explanation

Busulfan acts as an alkylating agent. It contains two sulfonyloxy groups,  which acts as  good leaving groups when the drug reacts with a nucleophile.