Using O=S(=O)(c1ccc(Cl)cc1)C(CCCCCO)c1nnnn1Cc1ccccc1 to produce O=S(=O)(c1ccc(Cl)cc1)C1(c2nnnn2Cc2ccccc2)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.