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[4-(3-Amino-12-oxo-6,7,10,11-tetrazatricyclo[6.4.1.04,13]trideca-1(13),2,4,7,9-pentaen-6-yl)-3a-methyl-2-oxo-6,6a-dihydro-4H-furo[3,4-d][1,3]dioxol-6-yl]methyl acetate


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