[EN] PROCESS FOR THE PREPARATION OF BIHETEROARYL COMPOUNDS AND CRYSTAL FORMS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS BIHÉTÉROARYLE ET LEURS FORMES CRISTALLINES
申请人:GENENTECH INC
公开号:WO2022072721A1
公开(公告)日:2022-04-07
Processes for preparing biheteroaryl compounds are provided, including the biheteroaryl compound 3-(difluoromethoxy)-5-[2-(3,3-difluoropyrrolidin-1-yl)-6-[(1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptan-5-yl]pyrimidin-4-yl]pyridin-2-amine. Among other advantages, the processes provide for: the use of solvents that are relatively non-toxic and inexpensive; reduced usage of expensive precious metal catalysts; reaction temperature reduction in certain steps; the use of relatively non-toxic oxidation agents; the use of inexpensive transition metal catalysts; a reduction of molar ratios of certain reactants thereby improving process efficiency while reducing cost and waste; significantly higher reactant concentrations in certain steps; elimination of the need for multiple chromatographic purification steps; elimination of the need for certain extraction steps using organic solvent; and provide for higher yield and improved purity.
提供制备双杂环芳基化合物的工艺,包括双杂环芳基化合物3-(二氟甲氧基)-5-[2-(3,3-二氟吡咯烷-1-基)-6-[(1S,4S)-2-氧杂-5-氮杂双环[2.2.1]庚烷-5-基]嘧啶-4-基]吡啶-2-胺。该工艺具有以下优点:使用相对无毒和廉价的溶剂;减少昂贵的贵金属催化剂的使用;在某些步骤中降低反应温度;使用相对无毒的氧化剂;使用廉价的过渡金属催化剂;降低某些反应物的摩尔比,从而提高工艺效率同时降低成本和废弃物;在某些步骤中显著提高反应物浓度;消除多重色谱纯化步骤的需要;消除使用有机溶剂进行某些萃取步骤的需要;提高产率和纯度。