Using COC(=O)[C@@H]1OC(C)(C)N(C(=O)OC(C)(C)C)[C@@H]1C(=O)OC(C)c1ccc(OC)cc1 to produce COc1ccc(C(C)OC(=O)[C@@H]2[C@H](C(=O)O)OC(C)(C)N2C(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.