Using ON=C(N=c1ccccn1Cc1ccc(Cl)nc1)C(F)(F)F, CCCN=C=O to produce CCCNC(=O)ON=C(N=c1ccccn1Cc1ccc(Cl)nc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.