It seems like there might be a formatting issue in your question, as some of the agents listed are not matched with a specific mechanism of action. However, based on the information provided, I'll categorize the agents according to their general mechanism of action:
Inhibition of enzymes responsible for DNA synthesis:
- Leustatin
- Tayo
- Leukeran
- Zanosar
- Alimta
Irreversible binding of nucleic acids:
Blockage of hormone receptors:
Inhibition of mitosis:
- Velban
- Oneowin
- Taxol
- Oncovin
It's important to note that the categorization above is a generalization, and the specific mechanisms of action for some drugs may be more nuanced. Always refer to the latest and most reliable sources for detailed and accurate information on medications and their mechanisms of action. If there are specific drugs you would like more information about, feel free to provide additional details, and I'll do my best to assist you.