Leuprolide Acetate EP Impurity E

Chemical Name: (S)-N-ethyl-1-(((S)-5-oxopyrrolidine-2-carbonyl)-L-histidyl-D-tryptophyl-L-seryl-L-tyrosyl-D-leucyl-L-leucyl-L-arginyl)pyrrolidine-2-carboxamide

Synonym: (6R,7S)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Smile: O=C(N[C@@H](CO)C(N[C@H](C(N[C@H](CC(C)C)C(N[C@@H](CC(C)C)C(N[C@@H](CCCNC(N)=N)C(N(CCC1)[C@@H]1C(NCC)=O)=O)=O)=O)=O)CC2=CC=C(O)C=C2)=O)[C@H](NC([C@@H](NC([C@@H](N3)CCC3=O)=O)CC4=CN=CN4)=O)CC5=CNC6=CC=CC=C56