Using COCC(=O)N1CC(C(=O)OC)N(S(=O)(=O)c2ccc(OC)cc2)Cc2ccccc21 to produce COCCN1CC(C(=O)OC)N(S(=O)(=O)c2ccc(OC)cc2)Cc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.