Patent ID: 7709520

Claim:
An in vivo method of treating cancer, comprising obtaining a mammal having cancer, and administering to the mammal a composition comprising an effective dose of a compound of the formula: wherein: R 1 , R 2 , R 4 , R 5 , R 6 , R 7 , R 1 ′, R 2 ′, R 4 ′, R 5 ′, R 6 ′, and R 7 ′ are each independently selected from the group consisting of hydrogen, a halogen, a linear alkyl group containing one to about ten carbon atoms, a branched alkyl group containing one to about ten carbon atoms, an alkoxy group containing one to about ten carbon atoms, and a nitro group; and at least one of R 1 , R 2 , R 4 R 5 , R 6 , R 7 , R 1 ′, R 2 ′, R 4 ′, R 5 ′, R 6 ′, and R 7 ′ are not hydrogen; R 8 is hydrogen; R 8 ′ is selected from the group consisting of —C 6 H 5 , —C 6 H 4 CH 3 , —C 6 H 4 CF 3 , —C 6 H 4 —C 6 H 5 , —C 6 H 4 OCH 3 , or —C 6 H 4 Cl.