Using C[C@@H]1CN(CCCl)C[C@H](C)O1, COc1ccc2[nH]nc(C(=O)NCC3CCNCC3)c2c1 to produce COc1ccc2[nH]nc(C(=O)NCC3CCN(CCN4C[C@@H](C)O[C@@H](C)C4)CC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.