Synthesis, α-mannosidase inhibition studies and molecular modeling of 1,4-imino-ᴅ-lyxitols and their C-5-altered <i>N</i>-arylalkyl derivatives
作者:Martin Kalník、Sergej Šesták、Juraj Kóňa、Maroš Bella、Monika Poláková
DOI:10.3762/bjoc.19.24
日期:——
found to be the most potent inhibitor of AMAN-2 (Ki = 0.19 μM), whose amino acid sequence and 3D structure of the active site are almost identical to the human α-mannosidase II (GMII). Although 6-deoxy-DIM was 3.5 times more potent toward AMAN-2 than DIM, their selectivity profiles were almost the same. N-Arylalkylation of 6-deoxy-DIM resulted only in a partial improvement as the selectivity was enhanced
报道了1,4-亚氨基-ᴅ-lyxitols 及其在 C-5 处改变的N -芳基烷基衍生物的合成。研究了它们对四种 GH38 α-甘露糖苷酶(两种高尔基体类型:来自黑腹果蝇的 GMIIb 和来自秀丽隐杆线虫的 AMAN-2 ,以及两种溶酶体类型:来自黑腹果蝇的 LManII 和来自刀豆属的 JBMan )的抑制活性和选择性。6-Deoxy-DIM 被发现是最有效的 AMAN-2 抑制剂 ( K i= 0.19 μM),其氨基酸序列和活性位点的 3D 结构与人 α-甘露糖苷酶 II (GMII) 几乎相同。尽管 6-脱氧-DIM 对 AMAN-2 的效力是 DIM 的 3.5 倍,但它们的选择性曲线几乎相同。6-脱氧-DIM 的N-芳基烷基化仅导致部分改进,因为选择性以效力为代价得到提高。通过分子模型分析了相应抑制剂:酶复合物的结构和理化性质。