Using ClCc1ccc(Oc2nc3cccnc3s2)cc1, O=C1CCCN1C1CCNCC1 to produce O=C1CCCN1C1CCN(Cc2ccc(Oc3nc4cccnc4s3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.