8-azaspiro[4,5]decane-8-{4-[4''-(2'''-pyrimidinyl)-1''-piperazinyl]-butyne/2/-yl}-7,9-dione /E/-2-butenedionate;8-azaspiro[4,5]decane-8-{4-[4''-(2'''-pyrimidinyl)-1''-piperazinyl]-butyne/2/-yl}-7,9-dione /E/-2-butenedionate