Using Cc1ccc(C[Mg]Cl)cc1, Clc1cccc(-c2nc(Cl)c3c(n2)CCC3)c1 to produce Cc1ccc(Cc2nc(-c3cccc(Cl)c3)nc3c2CCC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.