Using OCCc1ccccn1, O=C1O[C@]2(CCN(C(=O)C3(c4ccc(O)cc4)CC3)C2)c2ccccc21 to produce O=C1O[C@]2(CCN(C(=O)C3(c4ccc(OCCc5ccccn5)cc4)CC3)C2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.