Using COc1ccc(CO)cn1, O=c1[nH]nc(-c2cccc(Cl)c2)c2ncccc12 to produce COc1ccc(Cn2nc(-c3cccc(Cl)c3)c3ncccc3c2=O)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.