N2-D-gluconoyl-N5-[(D-gluconoylamino)iminomethyl]-L-ornithine

N-[(S)-1-Carboxy-4-[1-[(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxy-1-oxohexyl]guanidino]butyl]-D-gluconamide