Using [NH4+], COC(=O)CC(=O)C(C)OC(=O)c1ccc(-c2ccccc2)cc1 to produce COC(=O)C=C(N)C(C)OC(=O)c1ccc(-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.