Carbetocin Impurity 3

Chemical Name: 3-((3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-3-((S)-2-(((S)-1-((2-amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosan-9-yl)propanoic acid

Smile: COC1=CC=C(C[C@H](NC2=O)C(N[C@]([C@@H](C)CC)([H])C(N[C@](CCC(O)=O)([H])C(N[C@@H](CC(N)=O)C(N[C@H](C(N3CCC[C@H]3C(N[C@@H](CC(C)C)C(NCC(N)=O)=O)=O)=O)CSCCC2)=O)=O)=O)=O)C=C1