Patent ID: 7078402

Claim:
A compound having the formula (I) below: in which: R1 represents: R 2 and R 3 , independently, represent a saturated or unsaturated, cyclic, linear or branched alkyl radical containing from 1 to 7 carton atoms or an aryl radical containing from 1 to 7 carbon atoms, or an aralkyl radical containing from 1 to 12 carbon atoms or, taken together, form a saturated alkyl ring containing from 3 to 7 carbon atoms, R 4 represents a saturated or unsaturated, cyclic, linear or branched alkyl radical containing from 1 to 7 carbon atoms or an aryl radical containing from 1 to 7 carbon atoms or an aralkyl radical containing from 1 to 12 carbon atoms, R 5 and R 6 , independently, represent a saturated or unsaturated, cyclic, linear or branched alkyl radical containing from 1 to 7 carbon atoms or an aryl radical containing from 1 to 7 carbon atoms, or an aralkyl radical containing from 1 to 12 carbon atoms or, taken together, form, with the nitrogen atom, a nitrogen heterocycle selected from pyrrolidine, piperidine, morpholine, thiamorpholine, piperazine, homopiperazine and N-methylpiperazine, R 7 represents a hydrogen atom, a saturated or unsaturated, cyclic, linear or branched alkyl radical containing from 1 to 7 carbon atoms or an aryl radical containing from 1 to 7 carbon atoms or an aralkyl radical containing from 1 to 12 carbon atoms, and X represents a halide ion or a nitrate, sulphate, sulphonate, carboxylate, thiocyanate or phosphate anion.