Using Brc1ccc(OCCN2CCCC2)cc1, COc1cc2c(cc1OC)C(=O)CCC2 to produce COc1cc2c(cc1OC)C(c1ccc(OCCN3CCCC3)cc1)=CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.