N1C2=CC=C1C(c3ccc(cc3)N(C)C)=C4C=CC(=N4)C(c5ccc(cc5)N(C)C)=C6C=CC(N6)=C(c7ccc(cc7)N(C)C)C8=NC(C=C8)=C2c9ccc(cc9)N(C)C