Using COc1ccc(C2CCN(CC[C@H](CN(C)C(=O)c3cc(C#N)cc4ccccc34)c3ccc(Cl)c(Cl)c3)CC2)c([S@](C)=O)c1 to produce COc1ccc(C2CCNCC2)c(SC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.