Using O=C(Cl)C12CC3CC(CC(C3)C1)C2, C[C@@H](O)c1cccnc1 to produce C[C@@H](OC(=O)C12CC3CC(CC(C3)C1)C2)c1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.