74949-68-1
→
~85%
74949-72-7
1-(5-amino-1,3,4-oxadiazol-2-yl)ethanone
3775-60-8
1,3,4-噁二唑-2-胺
615-15-6
2-甲基苯并咪唑
79015-02-4
2-Methyl-3-semicarbazido-chinoxalin