1,4-Oxathiin-3-carboxamide, N-(3-azidophenyl)-5,6-dihydro-2-methyl- 3'-Azido-5,6-dihydro-2-methyl-1,4-oxathiin-3-carboxanilide 3'-Azidocarboxin 77386-61-9 Azidocarboxin