SMILES	synton_id	synton#	reaction_id
CCCC1CN([2*:2])CCO1	H	3	r4	3
COC1C2CCCC2C1N[2*:2]	I	3	r4	3
COCc1nc([1*:1])cc([2*:2])n1	J	2	r4	3
FC1(F)CCC(N[1*:1])CC1	K	1	r4	3
