Using O=C1NC(=O)C(c2cn3c4c(cccc24)CCC3)=C1c1c[nH]c2ccccc12 to produce O=C1NC(=O)[C@@H](c2cn3c4c(cccc24)CCC3)[C@H]1c1c[nH]c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.