Using COC/C=C/B1OC(C)(C)C(C)(C)O1, CC(C)(C)OC(=O)N(Cc1cc(Br)cc(C=O)c1)C1CC1 to produce COC/C=C/c1cc(C=O)cc(CN(C(=O)OC(C)(C)C)C2CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.