Using C=CCOc1ccc(OCC(OCC)OCC)cc1, NCCc1ccc(O)c(O)c1 to produce C=CCOc1ccc(OCC2NCCc3cc(O)c(O)cc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.