Using O=Cc1ccccc1, CCOP(=O)(CS(=O)(=O)c1ncc(Cl)cn1)OCC to produce O=S(=O)(/C=C/c1ccccc1)c1ncc(Cl)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.