8-Oxo-9-[3-(1H-Bencildazol-2-iloxi) -phenyl] derivative-4,5,6,7,8,9-hexahydro-2h-pirrolo [3,4-b] quinolina-3-carboxylato de ethyl ester; preparation procedures; drug synthesis containing the substance; intermediate compounds; and its use as a selective Quinass inhibitor Aurora A and B treat cancer.