Isavuconazole Carbonyl Impurity

Chemical Name: 1-(3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(5,8-dimethyl-2-(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium

Smile: CC([N+]1=CN(CC(C(C)([H])C2=NC(C3=CC=C(C#N)C=C3)=CS2)(O)C4=CC(F)=CC=C4F)N=C1)OC(N(C)C5=C(COC(CN(C)C(OC(C)OC(N(C)C6=C(COC(CNC)=O)C=CC=N6)=O)=O)=O)C=CC=N5)=O