Remdesivir Impurity 20

Chemical Name: 2-Ethylbutyl ((S)-(((3aR,4R,6R,6aR)-6-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-cyano-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)(phenoxy)phosphoryl)-L-alaninate

Smile: CCC(COC([C@H](C)N[P@](OC[C@@H]1[C@@H](OC(C)(C)O2)[C@@H]2[C@@](C3=CC=C4N3N=CN=C4N)(C#N)O1)(OC5=CC=CC=C5)=O)=O)CC