申请人:Mitsubishi Tanabe Pharma Corporation
公开号:EP3549935A1
公开(公告)日:2019-10-09
The present invention provides an industrially advantageous method for producing a 3,5-disubstituted triazine compound that is useful as an active pharmaceutical ingredient. More specifically, the present invention provides a production method, whereby it becomes possible to efficiently produce a 3-oxo-5-substituted triazine in water without the need to isolate an intermediate that may have mutagenicity, and it also becomes possible to perform the production without the need to isolate a product in each of multiple steps. Namely, the present invention provides a method for producing a compound represented by formula I or a salt thereof, the method including a step of reacting a compound represented by the following formula IV or a salt thereof with a base in water, and optionally including a step of forming a salt thereof. Specifically, the present invention provides a method for producing a compound represented by formula I or a salt thereof, the method including a step of derivatizing a compound represented by formula II or a salt thereof into a corresponding compound represented by formula III, a salt thereof, or a derivative thereof, then a step of reacting the resulting compound, a salt thereof, or a derivative thereof with aminourea or a salt thereof in water to produce a compound represented by formula IV or a salt thereof, and then a step of reacting the resulting compound or a salt thereof in the presence of a base.
(wherein ring A represents an optionally substituted aryl group or an optionally substituted heteroaryl group)
本发明提供了一种生产可用作活性药物成分的 3,5-二取代三嗪化合物的具有工业优势的方法。更具体地说,本发明提供了一种生产方法,据此可以在水中有效地生产 3-氧代-5-取代三嗪,而无需分离出可能具有致突变性的中间体,也无需在多个步骤中的每个步骤中分离出产物即可进行生产。即,本发明提供了一种生产式 I 所代表的化合物或其盐的方法,该方法包括将下式 IV 所代表的化合物或其盐与碱在水中反应的步骤,并可选包括形成其盐的步骤。具体地说,本发明提供了一种生产式 I 所代表的化合物或其盐的方法,该方法包括将式 II 所代表的化合物或其盐衍生成相应的式 III 所代表的化合物、其盐或其衍生物的步骤,然后将所得化合物、其盐或其衍生物与氨基脲或其盐在水中反应生成式 IV 所代表的化合物或其盐的步骤,再将所得化合物或其盐在碱存在下反应的步骤。
(其中环 A 代表任选取代的芳基或任选取代的杂芳基)。