Using CI, O=c1ccn2c(-c3ccc(F)cc3F)c(CO)ccc2c1-c1c(F)cccc1F to produce COCc1ccc2c(-c3c(F)cccc3F)c(=O)ccn2c1-c1ccc(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.