Using COc1cc(C#CCCCC=O)ccc1-n1cnc(C)n1, Clc1ccc([Mg]Br)cc1Cl to produce COc1cc(C#CCCCC(O)c2ccc(Cl)c(Cl)c2)ccc1-n1cnc(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.