Using COCc1cccc(Cn2nnc3c(Cl)nc(N)nc32)n1, Cc1cscn1 to produce COCc1cccc(Cn2nnc3c(-c4nc(C)cs4)nc(N)nc32)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.