The invention relates to a compound of formula one and an acceptable formula salt, wherein R1 is h or D (deuterium). The most popular compounds are: 4,6-dideutero-7-fluoro-1-isopropyl-3-methyl-8 - [6 - [3 - (1-piridil) proposxi] - 3-piridil] imidazo [4,5-c] quinton-2-ona and 4-deutoro-7-fluoro-1-isopropyl-3-methyl-8 - [6 - [3 - (1-piridil) propxi] - 3-piridil] imidazo [2-quinton]. These compounds are derived from the residue of imidazo [4,5-c] quinine-2-ona derivatives, which are selective modulators of quinidase in the process of mutated electrical necrosis (ATM),Useful in the treatment or prevention of cancer He also mentioned a pharmaceutical composerLa presente invencion se refiere a un compuesto de formula I y sales aceptables del mismo, donde: R1 es H o D (Deuterio). Son compuestos preferidos: 4,6-Dideutero-7-fluoro-1-isopropil-3-metil-8-[6-[3-(1-piperidil)propoxi]-3-piridil]imidazo[4,5-c]quinolin-2-ona y 4-Deutero-7-fluoro-1-isopropil-3-metil-8-[6-[3-(1-piperidil)propoxi]-3-piridil]imidazo[4,5-c] quinolin-2-ona. Dichos compuestos son derivados de imidazo [4,5-c] quinolin-2-ona deuterados, los cuales son moduladores selectivos de la quinasa de la ataxia telangiectasia mutada ("ATM"), siendo utiles en el tratamiento o prevencion del cancer. Tambien se refiere a una composicion farmaceutica.
