Regadenoson Impurity 5

Chemical Name: (2R,3R,4S,5R)-2-(6-amino-2-(2-((E)-(1-(6-amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-2-yl)-1H-pyrazol-4-yl)methylene)hydrazinyl)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol

Smile: O[C@H]1[C@H](N2C=NC3=C(N)N=C(N/N=C/C4=CN(C5=NC(N)=C6N=CN([C@@H]7O[C@H](CO)[C@@H](O)[C@H]7O)C6=N5)N=C4)N=C23)O[C@H](CO)[C@H]1O