Using CC[Mg]Br, COc1cc(Nc2nc3n(n2)CCC(=O)CC3c2ccc(F)cc2)ccc1-n1cnc(Cl)c1 to produce CCC1(O)CCn2nc(Nc3ccc(-n4cnc(Cl)c4)c(OC)c3)nc2C(c2ccc(F)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.