Olodaterol Impurity 4

Chemical Name: 8,8'-((2R,2'R)-((1-(4-methoxyphenyl)-2-methylpropan-2-yl)azanediyl)bis(2-hydroxyethane-2,1-diyl))bis(6-hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-one)

Smile: CC(C)(CC1=CC=C(C=C1)OC)N([C@@H](CC2=C3OCC(NC3=CC(O)=C2)=O)O)[C@@H](CC4=C5OCC(NC5=CC(O)=C4)=O)O