Using COc1ncccc1-c1ccc2onc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c2c1 to produce Nc1noc2ccc(-c3ccc[nH]c3=O)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.