Using COc1cc(COc2nn(-c3ccccc3)cc2/C=C/C(=O)N(C)OC)ccc1OCc1nc(-c2ccco2)oc1C, C[Mg]Br to produce COc1cc(COc2nn(-c3ccccc3)cc2/C=C/C(C)=O)ccc1OCc1nc(-c2ccco2)oc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.