Formoterol EP Impurity H

Chemical Name:  N-[5-[(1RS)-2-[Benzyl[(1RS)-2-(4-methoxyphenyl)-1-methylethyl]amino]-1-hydroxyethyl]-2-hydroxyphenyl]formamide (as per EP);N-{5-[(RS)-2-{Benzyl[(RS)-1-(4-methoxyphenyl)propan-2-yl]amino}-1-hydroxyethyl]-2-hydroxyphenyl}formamide (as per USP)

Synonym:  N-Benzylformoterol (USP)

Smile: OC1=C(NC([H])=O)C=C(C(CN(CC2=CC=CC=C2)C(C)CC3=CC=C(OC)C=C3)O)C=C1