Using COS(=O)(=O)OC, CCOC(=O)c1ccc(N=CNc2ccc(C(=O)OCC)cc2)cc1 to produce CCOC(=O)c1ccc(N=CN(C)c2ccc(C(=O)OCC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.