Using CCCCC(N)C(C)(C)C(=O)O, CC(C)(C)OC(=O)OC(C)(C)C to produce CCCCC(NC(=O)OC(C)(C)C)C(C)(C)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.