Using CN(C[C@H]1CC[C@H](c2nc3ccccc3[nH]2)CC1)C(=O)OCc1ccccc1, CI to produce CN(C[C@H]1CC[C@H](c2nc3ccccc3n2C)CC1)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.