Using Cc1cccc(OCCc2nc(-c3ccccc3)oc2C)c1, COC(Cl)Cl to produce Cc1cc(OCCc2nc(-c3ccccc3)oc2C)ccc1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.