Synthesis of Natural O-Linked Carba-Disaccharides, (+)- and (−)-Pericosine E, and Their Analogues as α-Glucosidase Inhibitors
作者:Yoshihide Usami、Koji Mizuki、Rikiya Kawahata、Makio Shibano、Atsuko Sekine、Hiroki Yoneyama、Shinya Harusawa
DOI:10.3390/md15010022
日期:——
Pericosine E (6), a metabolite of Periconia byssoides OUPS-N133 was originally isolated from the sea hare Aplysia kurodai, which exists as an enantiomeric mixture in nature. The enantiospecific syntheses of both enantiomers of Periconia byssoides OUPS-N133 has been achieved, along with six stereoisomers, using a common simple synthetic strategy. For these efficient syntheses, highly regio- and steroselective
Pericosine E(6)是Periconia byssoides OUPS-N133的代谢产物,最初是从海兔Aplysia kurodai中分离出来的,该菌在自然界中以对映体混合物的形式存在。使用普通的简单合成策略,已实现了Periconia byssoides OUPS-N133的两个对映体的对映体特异性合成,以及六个立体异构体。对于这些有效的合成,采用了高度区域选择性和立体选择性的方法来制备溴代醇和抗环氧中间体。为了获得独特的O-连接的二糖结构,使用催化的BF 3·Et 2 O实现了氯醇作为供体和抗环氧化物作为受体的偶联。大多数合成的化合物对来自酵母的α-糖苷酶表现出选择性显着的抑制活性。