Using CCOC(=O)c1cccc(N(CCCN2c3ccccc3CCc3ccccc32)C(C)=O)c1 to produce O=C(O)c1cccc(NCCCN2c3ccccc3CCc3ccccc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.