4-(8-Propyl-2,4-dithioxo-1,3-diazaspiro[4.5]decan-3-yl)spiro[1,5-dihydro-1,5-benzodiazepine-2,3′-indoline]-2′-one). - Stoitsov, Dimitar; Marinov, Marin; Penchev, Plamen; Stoyanov, Neyko (Molbank, 2025)