Using CC(CO)n1c(C(F)(F)F)nc2cc(F)c(-n3c(=O)cc(C(F)(F)F)n(C)c3=O)cc21, O=[Cr](=O)(O)O to produce CC(C(=O)O)n1c(C(F)(F)F)nc2cc(F)c(-n3c(=O)cc(C(F)(F)F)n(C)c3=O)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.