摘要 |
The invention provides a compound of formula (I), a pharmaceutical composition thereof, a method of preparing a medicament for the treatment of a cancer, and a method of treating cancers. The invention exhibits merits against cancers such as significantly higher potency and effectiveness over a broader range of cancers. In formula (I), Ra is a benzyl group with alkyl and/or alkoxy; Rb is selected from H and alkyl groups; Rf is an alkyl; and R3 is selected from a substituted phenyl, a heterocyclic group, and wherein Rc is selected from a fused ring, fused rings, and any bivalent cyclic group.
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