Concise synthesis of (−)-steviamine and analogues and their glycosidase inhibitory activities
作者:Nadechanok Jiangseubchatveera、Marc E. Bouillon、Boonsom Liawruangrath、Saisunee Liawruangrath、Robert J. Nash、Stephen G. Pyne
DOI:10.1039/c3ob40374b
日期:——
found to have in general poor inhibitory activity against most enzymes. The 10-nor analogues however, showed 50–54% inhibition of α-L-rhamnosidasefromPenicilliumdecumbens while one of these, 10-nor-steviamine, showed 51% inhibition of N-acetyl-β-D-glucosaminidase (from Jack bean) at the same concentration (760 μM).
Synthesis and Glycosidase Inhibition of the Enantiomer of (−)-Steviamine, the First Example of a New Class of Indolizidine Alkaloid
作者:Xiang-Guo Hu、Barbara Bartholomew、Robert J. Nash、Francis X. Wilson、George W. J. Fleet、Shinpei Nakagawa、Atsushi Kato、Yue-Mei Jia、Renate van Well、Chu-Yi Yu
DOI:10.1021/ol1007718
日期:2010.6.4
(+)-Steviamine, the enantiomer of the natural (-)-steviamine, and its corresponding C5 epimer have been synthesized from the D-ribose-derived cyclic nitrone. (-)-Steviamine was found to be the first naturally occurring iminosugar that causes any inhibition of alpha-galactosaminidases.