<2.2>(2,6)pyridophan-1-ene

10-Thia-16,17-diaza-tricyclo[10.3.1.14,8]heptadeca-1(15),4(17),5,7,12(16),13-hexaene 10-oxide

2-thia<2.3>(2,6)pyridinophane S,S-dioxide

1-bromo-2-thia<2.3>(2,6)pyridinophane S,S-dioxide

1,3-dibromo-2-thia<2.3>(2,6)pyridinophane S,S-dioxide