Using COc1ccc(-c2nc(NC(=O)C3(c4ccc5c(c4)OC(F)(F)O5)CC3)ccc2Cl)cn1 to produce O=C(Nc1ccc(Cl)c(-c2ccc(=O)[nH]c2)n1)C1(c2ccc3c(c2)OC(F)(F)O3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.