Using CON, CC1(COc2ccc(CC3SC(=O)NC3=O)cc2)CCCCC1=O to produce CON=C1CCCCC1(C)COc1ccc(CC2SC(=O)NC2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.