Using O=C(NCC(=O)C(F)(F)F)c1cnc(OCC(F)(F)F)c(-c2ccc(Cl)c(Cl)c2)c1, CON to produce CO/N=C(/CNC(=O)c1cnc(OCC(F)(F)F)c(-c2ccc(Cl)c(Cl)c2)c1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.