. "2''-isopropyl-(3a''R,8a''R)-dispiro[cyclobutane-1,5'-(dihydro-4'H-[1,3]dioxane)-2',6''-perhydro[1,3]dioxolo[4,5-e][1,3]diazepine-5'',7''-diium]-4',6'-dione(Platinum complex)" . "1f" . . . . . . . . . . . . .