Using C=C(c1ccccc1)n1c(=O)n(CCN2CCN(c3nccc4occc34)CC2)c2ccccc21 to produce O=c1[nH]c2ccccc2n1CCN1CCN(c2nccc3occc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.