Provided are compounds having Formula VIIIa-1:
wherein Z, X5, R2, R2a and R10 are as defined herein. Compounds of Formula VIIIa-1 can be used to prepare heterocyclic derivatives such as benzimidazole derivatives.
提供的化合物具有公式VIIIa-1:
其中Z、X5、R2、R2a和R10的定义如本文所述。公式VIIIa-1的化合物可用于制备杂环衍
生物,如
苯并咪唑衍
生物。