4-(7,9-DIOXO-8-AZASPIRO[4.5]DEC-8-YL)BUTYL [1-[2-OXO-2-[[4-[4-(PYRIMIDIN-2-YL)PIPERAZIN-1-YL]BUTYL]AMINO]ETHYL]CYCLOPENTYL]ACETATE O XALATE 1 * 50 mg