Using O=S(=O)(c1ccccc1)c1ccc2c(c1)OCCN2C1CCN(Cc2ccccc2)C1 to produce O=S(=O)(c1ccccc1)c1ccc2c(c1)OCCN2C1CCNC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.