0  B4R0.1  C#CC(C)Br B0250 [0,1,0,0,0,0|2,0,1]=4
1  B4R0.1  C#CC(C)O B0123 [0,1,0,0,0,0|1,0,1]=3
2  B5R0.1  CC(=O)OCBr B0074 [0,2,0,0,0,0|0,0,0]=2