Using O=C1O[C@]2(CCN(C(=O)C3(c4ccc(/C=C/c5ccccn5)cc4)CC3)C2)c2ccncc21 to produce O=C1O[C@]2(CCN(C(=O)C3(c4ccc(CCc5ccccn5)cc4)CC3)C2)c2ccncc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.