Using O=CN[C@H](Cc1ccccn1)C(=O)N1CCN(c2cccc3[nH]ccc23)CC1 to produce CN[C@H](Cc1ccccn1)CN1CCN(c2cccc3[nH]ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.