6320-39-4
3-氨基-4-羟基吡啶
+
140-89-6
乙基黄原酸钾
→
~49%
120640-76-8
Oxazolo[4,5-c]pyridine-2(3H)-thione
5435-54-1
4-羟基-3-硝基吡啶
120208-25-5
2-(甲基硫代)噁唑并[4,5-c]吡啶