[[(2R,3S,4R,5R)-5-(6-aminopurine-1,3,7-triium-9-yl)-4-hydroxy-3-phosphonooxy-tetrahydrofuran-2-yl]methoxy-oxido-phosphoryl] [(2R,3S,5R)-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)-2-(phosphonooxymethyl)tetrahydrofuran-3-yl] phosphate - Open Babel Depiction