72222-91-4
2H-1,4-benzothiazin-3-ylhydrazine
→
~61%
83443-01-0
4H-tetrazolo[5,1-c][1,4]benzothiazine
5325-20-2
(2H)1,4-苯并噻嗪-3(4H)-酮
918968-14-6
3-chloro-2H-1,4-benzothiazine