Using CC(C)(C)OC(=O)N1CCC(N)CC1, COC(=O)C(C)(C)c1ccc(C(=O)O)cc1 to produce COC(=O)C(C)(C)c1ccc(C(=O)NC2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.