Using COC1=NCCCC1, O=C1CN=C(c2ccc(F)c(F)c2)O1 to produce O=C(O)c1nc(-c2ccc(F)c(F)c2)n2c1CCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.