Patent ID: 7528165

Claim:
A method for treating cancer selected from the group consisting of gastric carcinoma, cervical carcinoma, leukemia, breast cancer, colon carcinoma, liver cancer, lung cancer, oropharynx cancer, hypopharynx cancer, and oral epidermoid carcinoma, comprising administering to a subject in need thereof an effective amount of a compound of the following formula: wherein L 1 is C(O), and L 2 is a bond, C(O), O, S, NR, SO 2 , or CH 2 ; in which if L 2 is a bond, the other one is C(O), O, S, NR, SO 2 , or CH 2 ; R 1 is 5, 6, or 7-member aryl tri-substituted with alkoxy, and R 2 is R, halogen, nitro, nitroso, cyano, azide, isothionitro, OR, OC(O)R, OC(O)OR, OC(O)NRR′, SO 2 R, SO 3 R, SO 2 NRR′, SR, NRR′, NRSO 2 NR′R″, NRSO 2 R′, NRSO 3 R′, NRC(O)R′, NRC(O)NR′R″, NRC(O)OR′, NRC(N)NR′R″, C(O)R, C(O)OR, C(O)NRR′; each of R a , R b , R c , and R d , independently, is R, halogen, nitro, nitroso, cyano, azide, isothionitro, OR, OC(O)R, OC(O)OR, OC(O)NRR′, SO 2 R, SO 3 R, SO 2 NRR′, SR, NRR′, NRSO 2 NR′R″, NRSO 2 R′, NRSO 3 R′, NRC(O)R′, NRC(O)NR′R″, NRC(O)OR′, NRC(N)NR′R″, C(O)R, C(O)OR, C(O)NRR′, or R b and R c , R a and R b , or R c and R d taken together are O(CH 2 ) n O; and R e is H, alkyl, alkenyl, alkynyl, heteroaryl, cyclyl, heterocyclyl, halogen, nitro, nitroso, cyano, azide, isothionitro, OR, OC(O)R, OC(O)OR, OC(O)NRR′, SO 2 R, SO 3 R, SO 2 NRR′, SR, NRR′, NRSO 2 NR′R″, NRSO 2 R′, NRSO 3 R′, NRC(O)R′, NRC(O)NR′R″, NRC(O)OR′, NRC(N)NR′R″, C(O)R, C(O)OR, or C(O)NRR′; in which each of R, R′, and R″, independently, is H, alkyl, alkenyl, alkynyl, aryl, heteroaryly, cyclyl, or heterocyclyl; and n is 1, 2, 3, 4, or 5.