Using COC(=O)C1CCN(CCCOc2ccc(-n3nc4ccccc4c3Cl)cc2)CC1 to produce OCC1CCN(CCCOc2ccc(-n3nc4ccccc4c3Cl)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.