Using C=CC[Sn](CCCC)(CCCC)CCCC, COC(=O)c1ncc(COc2ccccc2)cc1Cl to produce C=CCc1cc(COc2ccccc2)cnc1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.