Using O=C(O)c1cccc(C(F)(F)F)c1Cl, C1=Cc2c(ncn2-c2ccccc2)CN1 to produce O=C(c1cccc(C(F)(F)F)c1Cl)N1C=Cc2c(ncn2-c2ccccc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.