On treatment with N-bromosuccinimide under irradiation in refluxing carbon tetrachloride, 2,3,4,6-tetra-O-acetyl-1-S-(Z)-benzhydroximoyl-1-thio-D-glucopyranose 1 and various analogs yielded new spiro anomericoxathiazole derivatives in ≈60% total yield. After deacetylation, the tested major 1(S) epimers were found good competitive inhibitors of emulsin β-D-glucosidase whereas a 1 (R) counterpart had
在回流的
四氯化碳中用N-
溴琥珀
酰亚胺进行辐照处理后,得到2,3,4,6-四-O-乙酰基-1- S-(Z)-苯氢
肟基-1-
硫代-
D-吡喃葡萄糖1和各种类似物,得到了新的约占总产率60%的螺环杂恶二唑衍
生物。脱乙酰基后,发现被测试的主要1(S)差向异构体是乳化素β-
D-葡萄糖苷酶的良好竞争性
抑制剂,而1(R)对应异构体对该酶没有影响。