Using C=C[C@H](Cc1ccccc1)[C@@H](O)[C@H](C)OCc1ccc(OC)cc1, COCCBr to produce C=C[C@H](Cc1ccccc1)[C@@H](OCCOC)[C@H](C)OCc1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.