Using O[C@@H]1CCNC1, O=C(c1ccc(OCCCCl)cc1)C1CC1 to produce O=C(c1ccc(OCCCN2CC[C@@H](O)C2)cc1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.