Using CON, CCOC(=O)C(=O)c1cccc(F)c1COC(C)(C)C to produce CCOC(=O)C(=NOC)c1cccc(F)c1COC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.