Using CN1CCN(c2ccc3[nH]c(-c4ccc5[nH]c(-c6ccc(O)cc6)nc5c4)nc3c2)CC1 to produce CN1CCN(c2ccc3nc(-c4ccc5c(c4)NC(=C4C=CC(=O)C=C4)N5)[nH]c3c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.