Using CCOC(=O)c1c(C)nc2c(ccn2Cc2ccc(F)c(F)c2)c1I to produce Cc1nc2c(ccn2Cc2ccc(F)c(F)c2)c(I)c1CO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.