Using CCCC1(CCOc2ccnc(CO)c2C)OCCO1, Sc1nc2ccccc2[nH]1 to produce CCCC1(CCOc2ccnc(CSc3nc4ccccc4[nH]3)c2C)OCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.