Patent ID: 7662842

Claim:
A method of destroying a melanoma cell comprising: providing a compound according to formula (II) wherein X 1 and X 2 are each optional, and each can be oxygen; X 3 is oxygen or sulfur; R 1 is where m is an integer from 0 to 10; R 2 is an aliphatic straight- or branched-chain C1 to C30 hydrocarbon; R 3 is hydrogen or an aliphatic straight- or branched-chain C1 to C10 hydrocarbon; R 4 is optional, or can be hydrogen or an aliphatic or non-aliphatic straight- or branched-chain C1 to C10 hydrocarbon; and R 5 , R 6 , R 7 , R 8 , and R 9 are independently selected from the group of hydrogen, hydroxyl, an aliphatic or non-aliphatic straight- or branched-chain C1 to C10 hydrocarbon, alkoxy, aryloxy, nitro, cyano, chloro, fluoro, bromo, iodo, haloalkyl, dihaloalkyl, trihaloalkyl, amino, alkylamino, dialkylamino, acylamino, arylamino, amido, alkylamido, dialkylamido, arylamido, aryl, C5 to C7 cycloalkyl, and arylalkyl; and contacting the melanoma cell with the compound under conditions effective to kill the melanoma cell.