Using CCCc1c(Cn2ccnc2-c2ncccc2F)ncn2nc(CO)nc12, COCCN(CCOC)S(F)(F)F to produce CCCc1c(Cn2ccnc2-c2ncccc2F)ncn2nc(CF)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.