Using COC(=O)c1cccc(N(C)C2CCCC2)c1Br, C=CB1OC(C)(C)C(C)(C)O1 to produce C=Cc1c(C(=O)OC)cccc1N(C)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.