Using CCOC(=O)C(=O)CC(=O)c1cccc(N(Cc2ccccc2)Cc2ccccc2)c1 to produce O=C(O)C(=O)CC(=O)c1cccc(N(Cc2ccccc2)Cc2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.