Using O=C1CSC(=S)N1, COc1c(C(C)(C)C)cc(COc2ccc(C=O)cc2)cc1C(C)(C)C to produce COc1c(C(C)(C)C)cc(COc2ccc(C=C3SC(=S)NC3=O)cc2)cc1C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.