[Fe].O=C(Nc1ccccc1C2=C3C=CC(=N3)C(=C4C=CC(N4)=C(C5=NC(C=C5)=C(C6=CC=C2N6)c7ccccc7NC(=O)C(C)(C)C)c8ccccc8NC(=O)C(C)(C)C)c9ccccc9NC(=O)C(C)(C)C)C(C)(C)C