Using O=C1c2ccccc2-c2nc3ccc(O)cc3c(Cl)c21, CCN(CC)CCS to produce CN(C)CCSc1c2c(nc3ccc(O)cc13)-c1ccccc1C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.