Using O=C1Nc2ccncc2C(c2ccccc2)N1C1CCNCC1, O=Cc1ccsc1 to produce O=C1Nc2ccncc2C(c2ccccc2)N1C1CCN(Cc2ccsc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.