Using CCOC(=O)c1ccc(O)cc1, CC1(C)CC=C(c2cccs2)c2cc(C(=O)O)ccc21 to produce CCOC(=O)c1ccc(OC(=O)c2ccc3c(c2)C(c2cccs2)=CCC3(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.