| (2r,3s,4r,5r)-2-({[{[(2r,3s,4r,5r)-2-({[{[(2r,3s,4r,5r)-5-(2-amino-6-oxo-3,6-dihydro-9h-purin-9-yl)-2-({[{[(2r,3s,4r,5s)-5-(2-amino-6-oxo-3,6-dihydro-9h-purin-9-yl)-4-hydroxy-2-(hydroxymethyl)tetrahydrofuran-3-yl]oxy}(hydroxy)phosphoryl]oxy}methyl)-4-hydr |
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