Using O=C1Cc2cccc(C(=O)c3ccccc3)c2N1, CCOC(=O)OCC to produce CCOC(=O)C1C(=O)Nc2c(C(=O)c3ccccc3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.