Using CCNc1ncc2c(n1)N1CCC[C@H]1CN(c1cn(C(=O)OC(C)(C)C)c3ccc(C#N)cc13)C2=O to produce CCNc1ncc2c(n1)N1CCC[C@H]1CN(c1c[nH]c3ccc(C#N)cc13)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.