Using C[S+](C)(C)=O, CCOC(=O)/C=C/c1cccc2nc(C(F)(F)F)cn12 to produce CCOC(=O)C1CC1c1cccc2nc(C(F)(F)F)cn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.