The process for the manufacture of spiro-linked pyrrolidine-2,5-diones
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0254149A2
公开(公告)日:1988-01-27
This invention relates to novel processes for the manufacture of spiro-linked pyrrolidine-2,5-diones of the formula;
which have potent inhibitory activity on aldose reductase and are useful for reduction and prevention of chronic diabetic complications.
The invented processes are useful as improved and convenient method for a large scale manufacture.
Process for the manufacture of spiro-linked pyrrolidine 2,5-diones
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US04749789A1
公开(公告)日:1988-06-07
This invention relates to novel processes for the manufacture of spiro-linked pyrrolidine-2,5-diones of the formula; ##STR1## which have a potent inhibitory activity on aldose reductase and are useful for reduction and prevention of chronic diabetic complications. The invented processes are useful as improved and convenient method for a large scale manufacture.