Using O=c1c2ccccc2nc(S)n1-c1ccccc1, Cc1ccnc(CCl)c1 to produce Cc1ccnc(CSc2nc3ccccc3c(=O)n2-c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.