Using COc1cc(Nc2nnc(Cc3ccncc3)c3ccccc23)ccc1Cl to produce Oc1cc(Nc2nnc(Cc3ccncc3)c3ccccc23)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.