| abstract |
The present invention relates to compounds of formula I wherein R1 and R2 are each independently an optionally substituted C2-24 saturated or unsaturated, straight or branched chain carboxylic acid; m, p and q are 1-10; n is 0 to 10; X and Y are hydrogen or some acidic group which may be in neutral or charged form, with the proviso that at least one of X and Y is in neutral or charged form and A and B are independently oxygen, sulfur or -NH-. The present invention relates to the preparation of the above compounds and to pharmaceutical compositions containing them. In particular, the compounds of the invention have immunomodulatory properties. SHE |