Using Cc1ccc2c(=O)oc3ccccc3c2c1, CN(C)C(OC(C)(C)C)N(C)C to produce O=CCc1ccc2c(=O)oc3ccccc3c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.