1 O7J N-[(1s)-1-carboxy-3-{[(1s)-1-carboxy-2-(1h-imidazol-5-yl)ethyl]amino}propyl]-L-glutamic acid 1.000 2 8UX (2~{S})-4-[[(2~{R})-3-(1~{H}-imidazol-4-yl)-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]-2-[[(2~{S})-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]butanoic acid 0.852