L-valyl-L-seryl-L-glutaminyl-N~1~-[(3S,4S)-1-{[(2S,3S)-1-{[(1S)-1-carboxy-2-methylpropyl]amino}-3-methyl-1-oxopentan-2-yl]amino}-3-hydroxy-6-methyl-1-oxoheptan-4-yl]-L-aspartamide