Using CCOC(=O)c1c[nH]c2cc3c(cc2c1=O)OCO3, O=S(=O)(OCC(F)(F)F)C(Cl)(Cl)Cl to produce O=C(O)c1cn(CC(F)(F)F)c2cc3c(cc2c1=O)OCO3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.