申请人:Gomi Noriaki
公开号:US20130144054A1
公开(公告)日:2013-06-06
The present invention provides a method capable of industrially producing a target product, i.e., a compound represented by the aforementioned formula (I) or a salt thereof, which is useful for preventing and treating cerebrovascular disorders such as cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage, and cerebral edema, particularly for preventing and treating glaucoma, at high yield even on a large scale without imposing a negative impact on the environment. The present invention provides a method for producing a compound represented by formula (I) or a salt thereof, wherein the method comprises a step of reacting a compound represented by formula (III) or a salt thereof with a compound represented by formula (II) in the presence of at least one solvent selected from the group consisting of a nitrile solvent, an amide solvent, a sulfoxide solvent, and a urea solvent, and a base.
本发明提供了一种能够在工业上生产目标产品的方法,即一种由上述公式(I)表示的化合物或其盐,该化合物对预防和治疗脑血管疾病(如脑梗死、脑出血、蛛网膜下腔出血和脑水肿)特别是对预防和治疗青光眼具有用处,即使在大规模生产时也能高产率地生产,而且不对环境造成负面影响。本发明提供了一种生产由公式(I)表示的化合物或其盐的方法,其中该方法包括以下步骤:在至少选择自腈溶剂、酰胺溶剂、亚砜溶剂和脲溶剂组成的群中选择至少一种溶剂和一种碱的条件下,将由公式(III)表示的化合物或其盐与由公式(II)表示的化合物反应。