d β-d-glucopyranoside; they are competitive inhibitors with Ki values from 0.014 to 0.30 μM. The strong inhibition of these enzymes agrees with the hypothesis that the enzymatic hydrolysis of 2-acetamido-2-deoxy-β-d-glucopyranosides proceeds via a boat-like conformer with a pseudo-axial scissile glycosidic bond and a pseudo-axial acetamido substituent optimally oriented to effect an intramolecular
合成了异喹核苷7和8,并测试了它们从杰克豆和牛肾脏中作为己糖苷酶的
抑制剂。这些异喹核苷模仿了
N-乙酰基-
葡糖胺衍生的β -
D-吡喃葡萄糖ef=https://www.molaid.com/MS_187149 target="_blank">吡喃
葡萄糖苷的1,4- B-构象异构体。它们是具有竞争性
抑制剂ķ我值从0.014到0.30μM。这些酶的强抑制与假设同意的酶
水解2-乙酰
氨基-2-
脱氧β -
D-吡喃葡萄糖苷前进通过一个船形构象异构体与伪-axial易切断糖苷键和一个伪-轴向乙酰
氨基取代基的最佳取向可以实现糖苷配基的分子内取代。