1H-2-Benzopyran-1-one derivatives, microbial products with pharmacological activity. Relationship between structure and activity in 6-[[1S-(3S,4-dihydro-8-hydroxy-1-oxo-1H-2-benzopyranon-3-yl)-3-methylbutyl]amino]-4S,5S-dihydroxy-6-oxo-3S-ammoniohexanoate
作者:Yukiji Shimojima、Hiroshi Hayashi
DOI:10.1021/jm00364a007
日期:1983.10
4-[1-hydroxy-2- [[1-(3,4-dihydro-8- hydroxy-1-oxo-1H-2-benzopyran-3-yl)-3-methylbutyl]amino]-2-oxoethyl]-3- (acetylamino)butan-4-olide (7), led to a considerable decrease in activity. Both di- and triacetylated derivatives of 6, 4-[1-acetoxy-2 -[[1-(3,4-dihydro-8-hydroxy-1-oxo-1H-2-benzopyran-3-yl)-3-methylbutyl] amino]-2-oxoethyl]-3-(acetylamino)butan-4-olide (8) and 4-[1-acetoxy-2- [[1-(3,4- dihydro-
为了研究6-[[1(S)-(3(S),4-dihydro-8-hydroxy-1-oxo-1H-2-benzopyran-3-yl)-3]中胃保护活性的结构要求短小芽孢杆菌AI-77的产物-甲基丁基]氨基] -4(S),5(S)-二羟基6-氧代-3(S)-氨己酸[AI-77-B,1],制备了9种衍生物然后测试其对大鼠应激性溃疡的保护作用。发色团,[1-(3,4-二氢-8-羟基-1-氧代-1H-2-苯并吡喃-3-基)-3-甲基丁基]氯化铵(2)和侧链部分都没有,仅作为单独片段的4-氨基-2,3-二羟基己二酸(4)表现出显着的活性。水解1H-2-苯并吡喃-1-酮骨架的内酯环,得到6-[[[1-(2-羧基-3-羟基苯基)-2-羟基-5-甲基己基-3-基]氨基] -4,5-二羟基-6-氧代-3-氨己酸(5)导致活性显着下降。在侧链中形成γ-内酯环4- [1-羟基-2-[[1-(3,4-二氢-8-羟