Synthesis and Enzyme-Inhibition Studies of Phenylsemicarbazones derived fromD-glucono-1,5-lactone and 2-acetamido-2-deoxy-D-glucono-1,5-lactone
作者:Diane R. Wolk、Andrea Vasella、Fritz Schweikart、Martin G. Peter
DOI:10.1002/hlca.19920750129
日期:1992.2.5
The carbohydrate-derived lactone phenylsemicarbazones 3 and 4 were prepared from 5 and 8 (Scheme). Treatment with 4-phenylsemicarbazide gave 6 and 7 (77:23) and 9 and 19 (76:24), respectively. Oxidation of 6 and 9 by CrO3–pyridine to 11 and 13, followed by deprotection, yeilded 3 and 4. The structure of 3 was established by X-ray analysis. Enzyme-inhibition studies using revealed that 3 is a competitive
由5和8(方案)制备衍生自碳水化合物的内酯苯基半氨基咔唑酮3和4。用4-苯基氨基氨基脲处理分别得到6和7(77∶23)和9和19(76∶24)。CrO 3-吡啶将6和9氧化为11和13,然后脱保护,得到3和4。通过X射线分析确定3的结构。使用的酶抑制研究显示3是K i = 23μm的竞争性抑制剂。使用来自牛肾,黑曲霉和卤虫的N-乙酰氨基葡萄糖苷酶检查4的活性。化合物4被认为是所有三种酶具有竞争性抑制剂ķ我值的0.13,6.0和0.71微米和ķ中号/ ķ我值的6910,45,和465,分别。