Using O=C1CCC(=O)N1Cl, CCOC(=O)c1cnn(-c2ccc(C(F)(F)F)cn2)c1N to produce CCOC(=O)c1cnn(-c2ccc(C(F)(F)F)cn2)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.