Using Cc1oc(-c2ccco2)nc1CCl, O=Cc1ccc(O)c(Br)c1 to produce Cc1oc(-c2ccco2)nc1COc1ccc(C=O)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.