Using CC(C)(C)OC(=O)N[C@@H]1CCCN(c2c(C3CC3)cnc3c2c(NC(=O)c2cccnc2)cn3C(=O)OC(C)(C)C)C1 to produce N[C@@H]1CCCN(c2c(C3CC3)cnc3[nH]cc(NC(=O)c4cccnc4)c23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.