Exploring 6′-Hydroxybuspirone. To explore a different substance…

6′-Hydroxybuspirone
6-Hydroxy-8-{4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl}-8-azaspiro[4.5]decane-7,9-dione
 3764  C21H31N5O3  401.503
 InChI=1S/C21H31N5O3/c27-17-16-21(6-1-2-7-21)18(28)19(29)26(17)11-4-3-10-24-12-14-25(15-13-24)20-22-8-5-9-23-20/h5,8-9,18,28H,1-4,6-7,10-16H2
 KOZNAHJIJGCFJJ-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 O=C1CC2(CCCC2)C(C(=O)N1CCCCN1CCN(CC1)c1ncccn1)O