Using CCOC(=O)C1=C(O)c2cc(Cl)ccc2C2(CCC3(CC2)OCC(C)(C)CO3)C1=O, CC(C)(C)OC(=O)CN to produce CC1(C)COC2(CCC3(CC2)C(=O)C(C(=O)NCC(=O)OC(C)(C)C)=C(O)c2cc(Cl)ccc23)OC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.