Using O=C1CSC(=O)N1, CCc1ccc(CCOc2ccc(C=O)cc2)nc1 to produce CCc1ccc(CCOc2ccc(C=C3SC(=O)NC3=O)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.