申请人:CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
公开号:US20190023712A1
公开(公告)日:2019-01-24
The present application falls within the field of drug synthesis, and in particular, the present application relates to a method for preparing ruxolitinib, and a method for preparing the intermediate and relevant intermediates used. The method comprises reacting a compound of formula II with a compound of formula IV or a salt thereof to obtain a compound of formula III, and then subjecting the compound of formula III to an acyl halogenation reaction, an amidation reaction, and a reaction dehydrating an amide to form a cyano group or removing the protecting group to prepare ruxolitinib. The method has the characteristics of brief steps, a high stereoselectivity, a high utilization ratio of atoms, mild reaction conditions and convenient post treatment. The method avoids using expensive asymmetric reaction catalysts, and is suitable for industrial production.
PREPARATION METHOD FOR CHIRAL PYRROLOPYRIMIDINE COMPOUND
申请人:Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
公开号:EP3473625A1
公开(公告)日:2019-04-24
Provided are a preparation method for a chiral pyrrolopyrimidine compound and a related intermediate. In the method, a compound of formula A and a compound of formula 6 or a salt thereof are reacted to obtain a compound of formula 7 or a compound of formula 14, and a compound of formula I is prepared from the compound of formula 7 or the compound of formula 14. Also provided are the intermediate used, a preparation method for the intermediate and a use of the intermediate in the preparation of the compound of formula I. The preparation method has characteristics such as brief steps, a high stereoselectivity, a high utilization ratio of atoms, mild reaction conditions and a convenient post-treatment. The method avoids using an expensive asymmetric reaction catalyst, and is suitable for industrial production.
本发明提供了一种手性吡咯并嘧啶化合物及相关中间体的制备方法。在该方法中,式 A 化合物和式 6 化合物或其盐反应得到式 7 化合物或式 14 化合物,由式 7 化合物或式 14 化合物制备式 I 化合物。还提供了所用的中间体、中间体的制备方法以及中间体在制备式 I 化合物中的用途。该制备方法具有步骤简短、立体选择性高、原子利用率高、反应条件温和和后处理方便等特点。该方法避免了使用昂贵的不对称反应催化剂,适合工业化生产。
Synthesis process of ruxolitinib
申请人:CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
公开号:US10562904B2
公开(公告)日:2020-02-18
The present application falls within the field of drug synthesis, and in particular, the present application relates to a method for preparing ruxolitinib, and a method for preparing the intermediate and relevant intermediates used. The method comprises reacting a compound of formula II with a compound of formula IV or a salt thereof to obtain a compound of formula III, and then subjecting the compound of formula III to an acyl halogenation reaction, an amidation reaction, and a reaction dehydrating an amide to form a cyano group or removing the protecting group to prepare ruxolitinib. The method has the characteristics of brief steps, a high stereoselectivity, a high utilization ratio of atoms, mild reaction conditions and convenient post treatment. The method avoids using expensive asymmetric reaction catalysts, and is suitable for industrial production.
Pyrrolopyrimidine crystal for preparing JAK inhibitor
申请人:Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
公开号:US10626118B2
公开(公告)日:2020-04-21
The present application relates to the field of pharmaceutical chemistry. The application specifically relates to a crystal form A and crystal form B of a pyrrolopyrimidine (formula I) for preparing a JAK inhibitor. The application further relates to a method for preparing the crystal form A and crystal form B, a crystalline composition comprising the crystal form A or crystal form B, a pharmaceutical composition comprising the crystal form A, crystal form B, or crystalline composition, and a pharmaceutical application of the pharmaceutical composition, the crystal form A, and the crystal form B. The crystal form A and crystal form B of the application has the advantages of high purity, high crystallinity, and good stability.
本申请涉及药物化学领域。本申请具体涉及一种用于制备 JAK 抑制剂的吡咯并嘧啶(式 I)的晶体形式 A 和晶体形式 B。本申请进一步涉及一种制备该晶型 A 和晶型 B 的方法,一种包含该晶型 A 或晶型 B 的结晶组合物,一种包含该晶型 A、晶型 B 或结晶组合物的药物组合物,以及该药物组合物、晶型 A 和晶型 B 的药物应用。本申请的晶型 A 和晶型 B 具有纯度高、结晶度高、稳定性好等优点。