Using c1ccc(COc2cc(COc3ccc4ccccc4c3)nnc2OCc2ccccc2)cc1 to produce O=c1cc(COc2ccc3ccccc3c2)[nH]nc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.