Using COc1cccc(Cn2nc(-c3ccc(Cl)cc3)c3c2CCNCC3)c1 to produce Oc1cccc(Cn2nc(-c3ccc(Cl)cc3)c3c2CCNCC3)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.