Using O=CCCCOc1nc2c(cc1Br)CCC(=O)N2, Clc1cccc(N2CCNCC2)c1Cl to produce O=C1CCc2cc(Br)c(OCCCCN3CCN(c4cccc(Cl)c4Cl)CC3)nc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.