Using C=CCBr, Cc1cc(C[C@H](C(=O)OC(C)C)[C@@H](O)C(=O)OC(C)C)nc(-n2c(C)ccc2C)c1 to produce C=CCO[C@@H](C(=O)OC(C)C)[C@H](Cc1cc(C)cc(-n2c(C)ccc2C)n1)C(=O)OC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.