Using CCOC(=O)c1c(C2CC2)nc2c(OCc3c(F)cccc3F)cccn12 to produce O=C(O)c1c(C2CC2)nc2c(OCc3c(F)cccc3F)cccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.