Using OCc1cnc(Oc2ccccc2)s1, CC1(C)[C@H](C=C2CCSC2=O)[C@H]1C(=O)Cl to produce CC1(C)[C@H](C=C2CCSC2=O)[C@H]1C(=O)OCc1cnc(Oc2ccccc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.