N--2-oxoethyl)-DL-homocysteinyl>glycine

(R)-4-((S)-2-{(S)-2-[(2R,3R,4R,5S,6R)-3-Acetylamino-6-(2-{2-acetylamino-4-[(6-amino-hexylcarbamoyl)-methylsulfanyl]-butyrylamino}-acetoxymethyl)-5-hydroxy-2-methoxy-tetrahydro-pyran-4-yloxy]-propionylamino}-propionylamino)-4-carbamoyl-butyric acid

N--2-oxoethyl)-DL-homocysteinyl>-N-(5-carbonylpentyl)glycinamide