A propionic acid derivative represented by general formula (I) or a pharmaceutically acceptable acid-addition salt thereof, wherein A represents OH, C₁-C₈ lower alkoxy, -NR₁R₂, or C₁-C₈ lower alkoxy which may be substituted by halogen, optionally susbtituted aryl, -COB or succinimido; R₁ and R₂ represent each H, C₁-C₈ lower alkyl or optionally substituted aralkyl, or alternatively R₁ and R₂ are combined together with the adjacent nitrogen atoms to represent a heterocycle; and B represents OH, C₁-C₈ lower alkyl, optionally susbtituted aryl, optionally substituted aryloxy, C₁-C₈ lower alkoxy, optionally substituted aralkyloxy, or NR₁R₂ wherein R₁ and R₂ are each as defined above. This compound is useful as a protease inhibitor.
通式 (I) 所代表的
丙酸衍
生物或其药学上可接受的酸加成盐,其中 A 代表 OH、C₁-C₈ 低级烷
氧基、-NR₁R₂ 或可被卤素、任选取代的芳基、-COB 或琥珀
酰亚胺取代的 C₁-C₈ 低级烷
氧基;R₁ 和 R₂ 各自代表 H、C₁-C₈ 低级烷基或任选取代的芳基,或者 R₁ 和 R₂ 与相邻的
氮原子结合在一起代表杂环;B 代表 OH、C₁-C₈ 低级烷基、任选取代的芳基、任选取代的芳
氧基、C₁-C₈ 低级烷
氧基、任选取代的芳
氧基或 NR₁R₂,其中 R₁ 和 R₂ 各自如上定义。该化合物可用作
蛋白酶抑制剂。