PROCESS FOR PREPARING 7H-PYRROLO[2,3-d]PYRIMIDINE DERIVATIVES AND CO-CRYSTALS THEREOF
申请人:Japan Tobacco Inc.
公开号:US20200165269A1
公开(公告)日:2020-05-28
The present invention relates to processes for preparing 7H-pyrrolo[2,3-d]pyrimidine derivatives which are useful as a Janus kinase (JAK) inhibitor, co-crystals thereof, processes for preparing the co-crystals, and processes for purifying 7H-pyrrolo[2,3-d]pyrimidine derivatives by employing the co-crystals. The present invention provides, for example, a process for preparing 3-[(3S,4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile by employing a co-crystal of 3-[(3S,4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile with 3,5-dimethylpyrazole.
本发明涉及一种制备7H-吡咯并[2,3-d]嘧啶衍生物的方法,该衍生物可用作Janus激酶(JAK)抑制剂,以及其共晶体的制备方法、制备共晶体的方法,以及通过使用共晶体来纯化7H-吡咯并[2,3-d]嘧啶衍生物的方法。例如,本发明提供了一种通过使用3,5-二甲基吡唑与3-[(3S,4R)-3-甲基-6-(7H-吡咯并[2,3-d]嘧啶-4-基)-1,6-二氮杂螺[3.4]辛-1-基]-3-氧代丙腈的共晶体来制备3-[(3S,4R)-3-甲基-6-(7H-吡咯并[2,3-d]嘧啶-4-基)-1,6-二氮杂螺[3.4]辛-1-基]-3-氧代丙腈的方法。