0  B5R0.1  CCOC(N)=O DB04827 [0,1,0,0,0,0|2,0,1]=4
1  B5R1.2  O=C1CCO1 DB09348 [0,0,0,1,0,0|2,0,0]=3
2  B4R0.3  O=S(=O)([O-])[O-] DB08938 [1,1,0,0,0,0|2,0,0]=4