Using COc1cc(Cl)cc(-c2nnc(N)nc2-c2ccccc2)c1 to produce Nc1nnc(-c2cc(O)cc(Cl)c2)c(-c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.