Using Cn1c2c(c(=O)n1-c1cnc3ccccc3n1)CN(C(=O)OC(C)(C)C)CC2 to produce Cn1c2c(c(=O)n1-c1cnc3ccccc3n1)CNCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.