(2R)-N-乙基-1-(Nw-(2-羟基乙酰基)-N2-(5-氧代吡咯烷-2-羰基)-L-组氨酰-L-色氨酰-L-丝氨酰-D-酪氨酰-L-亮氨酰-D-亮氨酰精氨酰)吡咯烷-2-甲酰胺

(2R)-N-ethyl-1-(Nw-(2-hydroxyacetyl)-N2-(5-oxopyrrolidine-2-carbonyl)-L-histidyl-L-tryptophyl-L-seryl-D-tyrosyl-L-leucyl-D-leucylarginyl)pyrrolidine-2-carboxamide