The application includes a description of novel intermediates, of new manufacturing steps resulting in a novel and improved process for producing the intermediates and the final compounds, i.e., 6-alkynyl-pyridine derivatives. The intermediates of the invention are useful to produce 6-alkynyl-pyridine derivatives, which compounds are useful for the treatment of cancer.
                            该申请包括对新型中间体、新生产步骤的描述,这些新生产步骤产生了生产中间体和最终化合物(即 6-炔基
吡啶衍生物)的新型改进工艺。本发明的中间体可用于生产 6-炔基
吡啶衍生物,这种化合物可用于治疗癌症。