Using O=C(NC1CNCC(c2ccc(OC(F)(F)F)cc2)C1)c1ccccc1, CO[C@H](C)C(=O)O to produce CO[C@H](C)C(=O)N1CC(NC(=O)c2ccccc2)CC(c2ccc(OC(F)(F)F)cc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.