134540-97-9
5-tert-butyl-3-ethyl-1,2-oxazole-4-carboxylate
→
~80%
134541-06-3
5-叔丁基-异恶唑-4-羧酸
116344-10-6
ethyl 2-((dimethylamino)methylene)-4,4-dimethyl-3-oxopentanoate
136995-27-2
5-tert-butyl-1,2-oxazole-4-carbonyl chloride