Using O=C1CSC(=S)N1, CCCc1c(OCc2cccc(C=O)c2)ccc(C(C)=O)c1O to produce CCCc1c(OCc2cccc(/C=C3\SC(=S)NC3=O)c2)ccc(C(C)=O)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.