[EN] PROCESS FOR PREPARING METHYL {4,6-DIAMINO-2-[5-FLUORO-1-(2-FLUOROBENZYL)-1H-PYRAZOLO[3,4-B]PYRIDIN-3-YL]PYRIMIDIN-5-YL}CARBAMATE<br/>[FR] PROCÉDÉ DE PRÉPARATION DU {4,6-DIAMINO-2-[5-FLUORO-1-(2-FLUOROBENZYL)-1H-PYRAZOLO[3,4-B]PYRIDIN-3-YL]PYRIMIDIN-5-YL}CARBAMATE DE MÉTHYLE
申请人:ADVERIO PHARMA GMBH
公开号:WO2021254981A1
公开(公告)日:2021-12-23
The present application relates to a novel and efficient process with high yield for preparing methyl 4,6- diamino-2-[5-fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidin-5-yl}carbamate of the formula (I) in the crystalline form of modification I, wherein the x-ray diffractogram of the compound of the formula (I) in modification I exhibits peak maxima of the 2 theta angle at 5.9, 6.9, 22.7, in very high purity which is significantly more cost-effective than the process known from the art and can be performed in customary pilot- and production plant-equipment (stirred tank/devices for isolation).
本申请涉及一种高产率、高效的新型制备甲基4,6-二氨基-2-[5-氟-1-(2-氟苯基)-1H-吡唑[3,4-b]吡啶-3-基]嘧啶-5-基}氨基甲酸甲酯(I式)的结晶形式I的方法,其中式(I)化合物在I型晶体修饰中的X射线衍射图谱在2θ角度处呈现峰值最大值为5.9、6.9、22.7,极其高纯度,比已知工艺更具成本效益,并可在常规中试和生产设备(搅拌槽/分离设备)中进行。