Patent ID: 7399878

Claim:
Compounds or their salts having the following general formula (I): A-B-N(O) s (I) wherein: s is an integer equal to 1 or 2; A=R-T 1 -, wherein R is a drug radical wherein the drug is naproxen; and T 1 =(CO) t or (X) t′ , wherein X=O, S, NR 1c , R 1c is H or a linear or branched alkyl, having from 1 to 6 carbon atoms, or a free valence, t and t′ are integers and equal to zero or 1, with the proviso that t=1 when t′=0; t=0 when t′=1; B=-T B -X 2 —O— wherein T B =(CO) when t=0, T B =X when t′=0, X being as above defined; X 2 is equal to R 1B -X-R 2B radical wherein X is S or NR 1c wherein NR 1c is as above defined, R 1B and R 2B , equal to or different from each other, are linear or branched C 1 -C 6 alkylenes, or X 2 is a radical wherein two alkylene chains C 1 -C 4 are linked to nonadjacent positions of a central ring having 4 or 6 atoms, said ring being an unsaturated cycloaliphatic ring, or a saturated or aromatic heterocylic ring, containing one or two heteroatoms, equal or different, selected from O, S, N; wherein the unsaturated cycloaliphatic ring does not have aromatic character according to Huckel's rule.