0  B8R0.9  CC(CBr)COC(=O)C CSC009841261 [0,1,0,0,0,1|1,0,1]=4
1  B8R0.27  CC(C(=O)C)S(=O)(=O)C CSC011748374 [0,2,0,0,0,0|2,0,0]=4