Using CCOC(=O)CC1(O)CCCCc2nc(C(C)(C)C)n(Cc3ccc(Cl)cc3)c21 to produce CCOC(=O)CC1CCCCc2nc(C(C)(C)C)n(Cc3ccc(Cl)cc3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.