Using CCOC(=O)c1cc2cc(OCc3ccccc3)ccc2[nH]1, C=CC(=O)OCCCC to produce O=C1CCn2c1cc1cc(OCc3ccccc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.