Patent ID: 8686177

Claim:
A composition comprising a compound of formula (I) wherein, X 1 is R 1 â€”Y 1 -A-; X 2 is â€”Z 1 â€”P(S)(OH) 2 ; X 3 is hydrogen; A is a direct link or (CH 2 ) l with l being an integer from 1-30; Y 1 is (CH 2 ) l with l being an integer from 1-30; Z 1 is oxygen; Q 1 and Q 2 are independently selected from the group consisting of H 2 , â•NR 4 , â•O, or a combination of H and â€”NR 5 R 6 ; R 1 is independently a straight or branched-chain C 1 to C 30 alkyl substituted with one or more cycloalkyl or a straight or branched-chain C 2 to C 30 alkenyl substituted with one or more cycloalkyl; and R 4 , R 5 , and R 6 , are independently hydrogen, a straight or branched-chain C 1 to C 30 alkyl, or a straight or branched-chain C 2 to C 30 alkenyl.