Using O=S(=O)(CCO)c1ccc(C(CC2CCCC2)c2cc3cccnc3[nH]2)cc1 to produce C=CS(=O)(=O)c1ccc(C(CC2CCCC2)c2cc3cccnc3[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.