Using O[C@H]1CN2CCC1CC2, O=C(O)C(c1cccs1)N1CCCCC1 to produce O=C(O[C@H]1CN2CCC1CC2)C(c1cccs1)N1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.