0  B8R1.7  NC(=O)[C@@H]1C=CCN1 CP27325 [0,1,0,0,0,0|1,0,2]=4
1  B8R1.7  O=C(O)C1C=CCN1 CP27023 [0,1,0,0,0,0|1,0,2]=4
2  B8R1.7  O=C(O)[C@@H]1C=CCN1 CP25837 [0,1,0,0,0,0|1,0,2]=4
3  B9R1.41  CN1C=CN=C1C(=O)O CP26752 [0,2,0,0,0,0|2,0,0]=4