Convenient synthesis and evaluation of glycosidase inhibitory activity of α- and β-galactose-type valienamines, and some N -alkyl derivatives
作者:Seiichiro Ogawa、Yuko Sakata、Naoyuki Ito、Maiko Watanabe、Kazuya Kabayama、Masayoshi Itoh、Takashi Korenaga
DOI:10.1016/j.bmc.2003.12.016
日期:2004.3
3SR)-6-methylenecyclohex-4-ene-1,2,3-triol. Four N-alkyl derivatives of the beta-anomer were readily prepared selectively by treatment of key intermediate 2,6-di-O-acetyl-3,4-O-isopropylidene-5a-carba-alpha- and beta-l-arabino-hex-5(5a)-enopyranosyl bromides with alkyl amines. All compounds were assayed for inhibitory activity against six glycosidases, and the N-dodecyl derivative was shown to be a very strong inhibitor
通过外消旋修饰从(1SR,2RS,3SR)-6-亚甲基环己-4-烯-1,2,3-三醇合成具有α-和β-半乳糖型结构的缬氨酸类似物。通过处理关键的中间体2,6-二-O-乙酰基-3,4-O-异亚丙基-5a-氨基甲酸酯-α-和β-1-阿拉伯糖基-可以轻松地选择性制备四种β-端基异构体的N-烷基衍生物hex-5(5a)-enopyranosyl溴化物与烷基胺。分析了所有化合物对六种糖苷酶的抑制活性,N-十二烷基衍生物被证明是一种非常强的β-半乳糖苷酶抑制剂(IC(50)0.01 microM,牛肝)。