6-tetra-O-acetyl-5a-carba-β-DL-glucopyranosyl bromide (6). Only compound DL-5 has been shown to be a strong inhibitor (Ki = 2.3 × 10−7M) of α-fucosidase (bovine kidney). They did not exhibit any inhibitory activity towards five glycoside hydrolases, namely α- and β-glucosidases and α- and β-galactosidases.
5a-Carba-α-DL-
吡喃岩藻糖胺 (DL-5) 和 -
吡喃半
乳糖胺 (DL-4) 已以常规方式由 2,3,4,6-四-O-乙酰基-5a-carba-β-合成DL-
吡喃
葡萄糖基
溴(6)。只有化合物 DL-5 被证明是 α-岩藻糖苷酶(牛肾)的强
抑制剂(Ki = 2.3 × 10-7M)。它们对五种糖苷
水解酶,即α-和β-
葡萄糖苷酶以及α-和
β-半乳糖苷酶没有表现出任何抑制活性。