Using CCCC[Sn](/C=C\OCC)(CCCC)CCCC, Cc1nc(-c2ccccc2)cc(-c2ccc(F)cc2)c1C=O to produce Cc1nc(-c2ccccc2)cc(-c2ccc(F)cc2)c1/C=C/C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.