| abstract |
Compounds of the formula (I) wherein R1, R5, R6, R7 and R10 are H, wherein R2, R3, R4 and R8 are OMe, and wherein R9 is -X-CO-R', R' is an unsubstituted or a substituted alkyl, alkenyl or aryl group comprising 5-21 carbon atoms and does not include N, and X is O, S or N, compounds related thereto, and methods for their use, particularly for modulating tumor growth or metastasis in an animal. |