abstract |
The present invention relates to a method for preparing chiral substituted pyrazolylpyrrolo[2,3-d]pyrimidines of formula III and related synthetic intermediate compounds. The chiral substituted pyrazolylpyrrolo[2,3-d]pyrimidine can be used as an inhibitor of the Janus kinase family (JAK) of protein tyrosine kinases for treating inflammatory diseases, myeloproliferative disorders and other diseases. |