Using COC(=O)c1cc2ncn(-c3ccc(N4CCCN(C)CC4)cc3)c(=O)c2s1 to produce CN1CCCN(c2ccc(-n3cnc4cc(C(=O)O)sc4c3=O)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.