1′,10a′-Dihydro-2′H-dispiro[cyclohexane-1,3′-pyrimido[1,2-a]indole-10′,2″-[1,3]dioxolane]

1′,10a′-Dihydro-2′H-dispiro[cyclohexane-1,3′-pyrimido[1,2-a]indole-10′,2″-[1,3]dioxolane]

Dispiro[cyclohexane-1,3′(4′H)-pyrimido[1,2-a]indole-10′(2′H),2″-[1,3]dioxolane], 1′,10′a-dihydro-

3-(Spirocyclohexyl)-1,2,3,4,10,11a-hexahydropyrimidino[1,2-a]indole-10-one ethylene ketal

5H-Pyrimido[1,2-a]indole, 1,2,3,4(4ah)-tetrahydro-2,2-pentamethylene-5,5-ethylenedioxy-