A compound selected from the following group, or its pharmaceutically acceptable salt: 4- {4- (3-fluorobenzyl) oxy] phenoxy} piperidino-1-carboxylate of pyridin-3-yl, 4- (2E) -3-phenylprop- Pyridin-3-yl 2-enoyl] piperazino-1-carboxylate, 4- (anilinocarbonyl) piperidino-1-pyridin-3-yl carboxylate, 4- (2-phenylethyl) piperazino-1-pyridin-3- carboxylate yl and 5- (methoxycarbonyl) pyridin-3-yl 4- (2-phenylethyl) piperazino-1-carboxylate.Un compuesto seleccionado entre el siguiente grupo, o su sal farmacéuticamente aceptable: 4-{4-(3-fluorobencil)oxi]fenoxi}piperidino-1-carboxilato de piridin-3-ilo, 4-(2E)-3-fenilprop-2-enoil]piperazino-1-carboxilato de piridin-3-ilo, 4-(anilinocarbonil)piperidino-1-carboxilato de piridin-3-ilo, 4-(2-feniletil)piperazino-1-carboxilato de piridin-3-ilo y 4-(2-feniletil)piperazino-1-carboxilato de 5-(metoxicarbonil)piridin-3-ilo.
