Using CC1c2c(ccc3[nH]ccc23)OCCN1C(=O)OC(C)(C)C, O=S(=O)(Cl)c1c(F)cccc1F to produce CC1c2c(ccc3c2ccn3S(=O)(=O)c2c(F)cccc2F)OCCN1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.