Using CC(C)(C)OC(=O)N1Cc2cc(Cl)c(N3CCOCC3)cc2C1, C[Sn](C)(C)C to produce Cc1cc2c(cc1N1CCOCC1)CN(C(=O)OC(C)(C)C)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.