Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基唑和溴化钠为原料,在光照条件用氯气置换出溴化钠中的溴素,药噻唑中间体-2-(二溴乙酰基)-唑氢溴酸盐。