Using CC(C)(C)OC(=O)N1CCC(=O)CC1, CCOP(=O)(Cc1cc(OC)ccc1Br)OCC to produce COc1ccc(Br)c(C=C2CCN(C(=O)OC(C)(C)C)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.