Provided are intermediates having the formulas
wherein R
2
, R
3
, and L are as defined in the specification, which are useful in the preparation of pyridin-2-yl-amino-1,2,4-thiadiazole derivatives.
提供了中间体的公式,其中R2,R3和L的定义如规范中所述,这些中间体在制备
吡啶-2-基
氨基-
1,2,4-噻二唑衍
生物中很有用。