Triptorelin Impurity 14

(S) -N- (2-amino-2-oxoethyl) -1- (((S) -5-oxopyrrolidine-2-carbonyl) -L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-L-tryptophyl-L-leucyl-L-arginyl) pyrrolidine-2-carboxamide