0  B4R0.1  NCC(=O)O DB00145 [0,1,0,0,0,0|0,0,0]=1
1  B5R0.5  CC(=O)C(=O)O DB00119 [0,2,0,0,0,0|0,0,0]=2
2  B5R0.5  C[C@H](N)C(=O)O DB00160 [0,2,0,0,0,0|0,0,0]=2