Using COC(=O)c1scc(-c2ccccc2)c1N, O=C=Nc1ccc(Cl)cc1 to produce O=c1[nH]c2c(-c3ccccc3)csc2c(=O)n1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.