72850-76-1
2-氨基-4-异丙基噻唑-5-羧酸乙酯
→
~92%
81569-58-6
5-噻唑羧酸,2-溴-4-(1-甲基乙基)-,乙基酯
81569-67-7
ethyl 2-bromo-4-methyl-3-oxopentanoate