| abstract |
Nitro oxide derivatives, or salts thereof, having the following general formula: R-NR1c- (K) k0- (B) b0- (C) c0-NO2 (I), where c0, b0 and k0 are 0 or 1; R is the radical of an analgesic drug for chronic pain, e.g. neuropathic pain; R 1c is H or alkyl of 1 to 5 carbon atoms; B is such that the precursor is selected from amino acids, hydroxy acids, polyalcohols; C is a bivalent radical containing an aliphatic, heterocyclic or aromatic radical. |