Using O=Cc1cccc2c1OCCO2, CC(C)(C)CNc1ccc(Cl)cc1 to produce CC(C)(C)CNc1ccc(Cl)cc1C(O)c1cccc2c1OCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.