Using CCOC(=O)CN1CCCOc2ccc(NC(=O)c3cc4cc(Cl)ccc4[nH]3)cc21 to produce O=C(O)CN1CCCOc2ccc(NC(=O)c3cc4cc(Cl)ccc4[nH]3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.