Using CCCn1c(=O)c2c3n(nc2n(Cc2ccccc2)c1=O)CCN3 to produce CCCn1c(=O)c2c(nn3cc[nH]c23)n(Cc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.