Using Cn1ccc2cc(-c3cnc(N)c(-c4nnc(C5CCN(C(=O)OC(C)(C)C)CC5)o4)c3)ccc21 to produce CN1CCc2cc(-c3cnc(N)c(-c4nnc(C5CCNCC5)o4)c3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.