Using COc1ccccc1N1CCN(CCCCNc2cc(Cl)nnc2OC)CC1 to produce COc1ccccc1N1CCN(CCCCNc2cc(Cl)n[nH]c2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.