Compound of the formula ** Formula ** in which X- is an anion； n is 1, 2, 3 or 4； R1 is isopropyl 35 or sec-butyl； R2 is hydrogen or C1-8 alkyl； R3 is benzyl containing, in the aromatic group, one to three substituents selected from the group consisting of OH, halogen, CN, NO2, C1-C2 alkyl, dimethylamino-C1-C4 alkoxy, C3-C6 cycloalkyl, C1- haloalkyl C2, C1-C2 alkoxy, C1-C2 haloalkoxy, phenoxy, phenyl-C1-C6 alkyl, phenyl-C1-C4 alkenyl, phenoxy unsubstituted or substituted with chlorine or methoxy, benzyloxy unsubstituted or substituted with chlorine, methoxy or trifluoromethyl, methylenedioxy, -C (>； = O) R5, -OC (>； = O) R6 and NHC (>； = O) R6； or R3 is -CH2-C (>； = O) C1-C12 alkoxy； or R3 is -CH2-heterocyclyl, wherein the heterocyclyl group is selected from pyridyl, furanyl, tetrahydrofuranyl； pyranyl, tetrahydropyranyl, pyrazolyl, imidazolyl, thiazolyl, benzothienyl, quinolinyl, quinoxalinyl, benzofuranyl, benzimidazolyl, benzopyrrolyl, benzothiazolyl, indolyl, coumarinyl and indazolyl, in which the aforementioned radicals are unsubstituted or halided by halides or halides , trifluoromethoxy or nitro； R5 is H, OH, NH2, NH (C1-C2 alkyl), N (C1-C2 alkyl) 2, -O-C1-C2-C alkyl (>； = O) -R7, -NH-C1-C2 alkyl- C (>； = O) -R7, C1-C6 alkyl, C1-C2 alkoxy, C1-C2 alkoxy-C1-C2 alkoxy, C2-C4 alkenyloxy, C2-C4 alkynyloxy； phenyl, phenoxy, benzyloxy, NH phenyl, NH-C1-C6-C alkyl (>； = O) -R7； or phenyl, phenoxy, benzyloxy, NH-phenyl which are substituted by halogen, nitro, methoxy, trifluoromethyl or trifluoromethoxy； R6 is H, C1-C3 alkyl, phenyl or benzyl； and R7 is H, OH, NH2, NH (C1-C12 alkyl), N (C1-C12 alkyl) 2, C1-C12 alkyl, C1-C12 alkoxy, C1-C6 alkoxy-C1-C6 alkoxy, C2-C8 alkenyloxy , phenyl, phenoxy, benzyloxy or NH-phenyl； and, where applicable, an E / Z isomer, mixture of E / Z isomers and / or tautomer thereof.Compuesto de la fórmula**Fórmula** en la que X- es un anión； n es 1, 2, 3 o 4； R1 es isopropilo 35 o sec-butilo； R2 es hidrógeno o alquilo C1-8； R3 es
