Using CC(C)C[C@@H](C(=O)N[C@H]1CC[C@@H]2CN(c3ccccc3C(F)(F)F)C[C@@H]21)N(C)C(=O)OC(C)(C)C to produce CN[C@@H](CC(C)C)C(=O)N[C@H]1CC[C@@H]2CN(c3ccccc3C(F)(F)F)C[C@@H]21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.