Polyphenol proteasome inhibitors, synthesis, and methods of use
The present invention relates to synthetic green tea derived polyphenolic compounds, their modes of syntheses, and their use in inhibiting proteasomal activity and in treating cancers. The present invention is also directed to pharmaceutical compositions useful in methods of inhibiting proteasomes and of treating cancers.
1. A method for treating cancer comprising administering an effective amount of a compound or a composition comprising said compound to a patient wherein the compound has a formula of:
or a pharmaceutically acceptable salt, wherein said cancer is a prostate cancer or leukemia.
2. The method according to claim 1 , wherein said administering is conducted by a route selected from the group consisting of orally, parenterally, subcutaneously, intravenously, intramuscularly, intraperitoneally, intraarterially, transdermally, and via a mucus membrane.
3. The method according to claim 1 , wherein said compound has less than 100% optical purity.
4. The method according to claim 1 , wherein said compound is optically pure.
5. The method according to claim 1 , wherein said compound is:
6. The method according to claim 1 , wherein said compound is:
7. The method according to claim 1 , wherein said compound is:
8. The method according to claim 1 , wherein said compound is:
9. The method according to claim 1 , wherein said compound is:
10. The method according to claim 1 , wherein said cancer is prostate cancer.
11. The method according to claim 1 , wherein the patient is a human.
12. The method according to claim 1 , wherein said cancer is leukemia.