Icaritin derivatives as well as preparation method and application thereof

The invention discloses icaritin derivatives as well as a preparation method and application thereof. The structure of the icaritin derivatives is showed in the formula (1), wherein m is equal to 2 and n is equal to 3 in a compound 1; or m is equal to 3 and n is equal to 3 in a compound 2. The icaritin derivatives are better in water solubility, stronger in antineoplastic activity and lower in toxicity to normal cells, can be used for preparing antineoplastic drugs, and has wide application prospect.