<unk>  works by methylating guanine at the O-6 and N-7 positions. Guanine is one of the four nucleotides that makes up DNA. The methylated DNA strands stick together such that cell division becomes impossible. This affects cancer cells more than healthy cells because cancer cells divide faster. Unfortunately however, some of the healthy cells will still be damaged.<unk>  is bioactivated in liver by demethylation to "MTIC" and then to diazomethane, which is an alkylating agent.
Dacarbazine
Hydroxycarbamide
Ifosfamide
Busulfan
Procarbazine
Etoposide
Melphalan
Vincristine