Using CC(C)(C)CC(C)(C)N(CCCC(=O)O)C(=O)c1cccc(C(F)(F)F)c1, CCOC(=O)CCN to produce CC(C)(C)CC(C)(C)N(CCCC(=O)NCCC(=O)O)C(=O)c1cccc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.