An asymmetric synthesis of a 3-hydroxy-β-lactam by ketene-imine cycloaddition: utilization of chiral ketenes from carbohydrates
摘要:
The Staudinger reaction of a chiral carbohydrate-based ketene and an imine proceeds to give, after removal of the sugar, cis-3-hydroxy-beta-lactam 7 in moderate yield with good asymmetric induction (70% e.e.).
An asymmetric synthesis of a 3-hydroxy-β-lactam by ketene-imine cycloaddition: utilization of chiral ketenes from carbohydrates
摘要:
The Staudinger reaction of a chiral carbohydrate-based ketene and an imine proceeds to give, after removal of the sugar, cis-3-hydroxy-beta-lactam 7 in moderate yield with good asymmetric induction (70% e.e.).
Asymmetric synthesis of anticancer β-lactams via Staudinger reaction: Utilization of chiral ketene from carbohydrate
作者:Bimal K. Banik、Indrani Banik、Frederick F. Becker
DOI:10.1016/j.ejmech.2009.11.024
日期:2010.2
We describe herein asymmetric synthesis of a novel anticancer β-lactam following Staudingerreaction with chiral carbohydrate as the ketene component with an achiral imine. The in vitro cytotoxicity studies of these β-lactams are also reported here.