申请人:Hoffmann-La Roche Inc.
公开号:US04452807A1
公开(公告)日:1984-06-05
1-(3-Hydroxy-4-methoxybenzoyl)-3-hydroxy-2-pyrrolidinone of the formula ##STR1## suitable for the control or prevention of cerebral insufficiency is described. The compound contains an asymmetric carbon atom. Therefore, the two optically active enantiomeric forms as well as the racemate are described. The compound of formula I can be prepared by cleaving the protecting group(s) from a corresponding compound in which at least one of the two hydroxy groups is protected.
本文描述了适用于控制或预防脑供血不足的化合物,化学式为1-(3-羟基-4-甲氧基苯甲酰)-3-羟基-2-吡咯烷酮。该化合物含有一个不对称碳原子,因此描述了两种旋光异构体以及混合物。公式I的化合物可以通过从至少一个羟基被保护的相应化合物中脱除保护基来制备。