Using CC(C)(C)OC(=O)N[C@H]1Cn2c(nc3cnc(Cl)cc32)C[C@@H]1c1cc(F)c(F)cc1F, C=C[Sn](CCCC)(CCCC)CCCC to produce C=Cc1cc2c(cn1)nc1n2C[C@H](NC(=O)OC(C)(C)C)[C@@H](c2cc(F)c(F)cc2F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.