Using O=C(OC(=Cc1nc2c(n1C(=O)c1ccccc1)CCCC2)c1ccccc1)c1ccccc1 to produce O=C(Cc1nc2c([nH]1)CCCC2)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.