Using C=CCNC, CC(C)(C)OC(=O)N1CCCc2cc(OCCCCCBr)ccc21 to produce C=CCN(C)CCCCCOc1ccc2c(c1)CCCN2C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.