Using COc1cc2c(cc1OS(=O)(=O)C(F)(F)F)[nH]c1cc(-c3ccccc3Cl)c3c(c12)C(=O)NC3=O, CCCC[Sn](/C=C/CCO)(CCCC)CCCC to produce COc1cc2c(cc1/C=C/CCO)[nH]c1cc(-c3ccccc3Cl)c3c(c12)C(=O)NC3=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.