Using Cc1oc(-c2ccc(Br)cc2)nc1CCl, CC(C)(C)OC(=O)C1COc2cc(O)ccc2C1 to produce Cc1oc(-c2ccc(Br)cc2)nc1COc1ccc2c(c1)OCC(C(=O)OC(C)(C)C)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.