Patent ID: 7501399

Claim:
A method of inducing an immune response in a subject, the method comprising: administering a composition comprising a therapeutically effective amount of a pharmaceutically acceptable carrier and a compound having the formula of: and pharmaceutically acceptable salts thereof, wherein X is a member selected from the group consisting of —O— and —NH—; Y is a member selected from the group consisting of —O— and —S—; R 1 , R 2 and R 3 are each members independently selected from the group consisting of (C 2 -C 24 )acyl; R 4 is a member selected from the group consisting of —H and —PO 3 R 7 R 8 , wherein R 7 and R 8 are each members independently selected from the group consisting of —H and (C 1 -C 4 )alkyl; R 5 is a member selected from the group consisting of —H, —CH 3 and —PO 3 R 9 R 10 , wherein R 9 and R 10 are each members independently selected from the group consisting of —H and (C 1 -C 4 )alkyl; R 6 is selected from H, OH, (C 1 -C 4 )alkoxy, —PO 3 R 11 R 12 , —OPO 3 R 11 R 12 , —SO 3 R 11 , —OSO 3 R 11 , —NR 11 R 12 , —SR 11 , —CN, —NO 2 , —CHO, —CO 2 R 11 , and —CONR 11 R 12 , wherein R 11 and R 12 are each independently selected from H and (C 1 -C 4 )alkyl, with the proviso that when R 4 is —PO 3 R 7 R 8 , R 5 is other than —PO 3 R 9 R 10 ; wherein “* 1 ”, “* 2 ”, “* 3 ” and “**” represent chiral centers; wherein the subscripts n, m, p and q are each independently an integer from 0 to 6, with the proviso that the sum of p and m is from 0 to 6.