Gallotannins and ellagitannins as regulators of cytokine release
申请人:The Penn State Research Foundation
公开号:US07288273B1
公开(公告)日:2007-10-30
A means and method for increasing or inhibiting the secretion of cytokines using gallotannins and ellagitannins is described. The preferred cytokine release inhibiting compounds are dimeric gallotannins having a linker molecule that misaligns the carbohydrate cores of the compounds. The preferred cytokine release promoting gallotannins and ellagitannins include a diaryl ether linker unit. In comparison to the more structurally complex ellagitannins, the compounds of this invention are structurally simpler, easier to synthesize, and more potent.
Ellagitannin Chemistry. Evolution of a Three-Component Coupling Strategy for the Synthesis of the Dimeric Ellagitannin Coriariin A and a Dimeric Gallotannin Analogue
作者:Ken S. Feldman、Michael D. Lawlor、Kiran Sahasrabudhe
DOI:10.1021/jo0010936
日期:2000.11.1
The total synthesis of the dimeric ellagitannin coriariin A is reported. The key reaction to access the dimeric framework was realized early in the synthesis pathway via a bis acylation reaction of a dehydrodigalloyl diacid with 2 equiv of a glucopyranose trichloroacetimidate. The glucose rings were subsequently functionalized, culminating in a double oxidative cyclization to form stereoselectively
GALLOTANNINS AND ELLIGITANNINS AS REGULATORS OF CYTOKINE RELEASE
申请人:FELDMAN KENNETH S.
公开号:US20080070850A1
公开(公告)日:2008-03-20
A means and method for increasing or inhibiting the secretion of cytokines using gallotannins and ellagitannins is described. The preferred cytokine release inhibiting compounds are dimeric gallotannins having a linker molecule that misaligns the carbohydrate cores of the compounds. The preferred cytokine release promoting gallotannins and ellagitannins include a diaryl ether linker unit. In comparison to the more structurally complex ellagitannins, the compounds of this invention are structurally simpler, easier to synthesize, and more potent.