Using CC(C)(C)OC(=O)N1Cc2nn(C[C@H]3NC(=O)[C@H]3NC(=O)OCc3ccccc3)nc2C1 to produce CC(C)(C)OC(=O)N1Cc2nn(C[C@H]3NC(=O)[C@H]3N)nc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.