Using O=C1NCCn2c(Br)nnc21, FC(F)(F)c1cccc(CBr)c1Cl to produce O=C1c2nnc(Br)n2CCN1Cc1cccc(C(F)(F)F)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.