Using CCOC(=O)c1c(Cl)nc2cccnc2c1Cl, OB(O)c1cccc(F)c1 to produce CCOC(=O)c1c(-c2cccc(F)c2)nc2cccnc2c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.