0  B19R0.167666  N=C(N)NCCC[C@H](NC(=O)[C@@H](N)CC(=O)N)C(=O)O Molport-053-144-677 [0,1,0,0,0,0|1,0,2]=4
1  B20R0.298417  N=C(N)NCCC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)O Molport-053-129-976 [0,1,0,0,0,1|0,0,2]=4