Using CC(C)(C)c1cc(N)cc(C(C)(C)C)c1O, O=C1OC(=O)c2ccccc21 to produce CC(C)(C)c1cc(N2C(=O)c3ccccc3C2=O)cc(C(C)(C)C)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.