Using O=CCCc1ccc(Cl)c(Cl)c1, CC(C)(C)[S@@](N)=O to produce CC(C)(C)[S@](=O)/N=C/CCc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.