Using COc1cc(OC)c(-c2cc3ccccc3n2C(=O)OC(C)(C)C)cc1C=O to produce COc1cc(OC)c(-c2cc3ccccc3[nH]2)cc1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.