Using CCOC(=O)C(C)(C)N(CC(C)=O)C(=O)Cc1ccccc1 to produce CCOC(=O)C(C)(C)N1CC(C)=C(c2ccccc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.