Using COCCOS(=O)(=O)C(F)(F)F, CC(=O)c1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)c(C)n1 to produce COCCn1c(C(C)=O)cnc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.