Using Cc1cc(C=O)cc(C)c1CC(O)CO, CCc1sc(C(C)=O)cc1-c1ccccc1 to produce CCc1sc(C(=O)CCc2cc(C)c(CC(O)CO)c(C)c2)cc1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.