Synthesis of 3-amido-3-deoxy-beta-D-talopyranosides: all-cis-substituted pyranosides as lectin inhibitors

TY - JOUR

T1 - Synthesis of 3-amido-3-deoxy-beta-D-talopyranosides: all-cis-substituted pyranosides as lectin inhibitors

AU - Öberg, Christopher

AU - Noresson, Ann-Louise

AU - Leffler, Hakon

AU - Nilsson, Ulf

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Organic chemistry (S/LTH) (011001240), Division of Microbiology, Immunology and Glycobiology - MIG (013025200)

PY - 2011

Y1 - 2011

N2 - 3-Deoxy-3-amino-beta-D-talopyranosides have been synthesized for the first time. The amines were obtained from galactopyranosides through 2,3-anhydrogulosides that were opened to idosides followed by an oxidation/reductive amination sequence. From the amines, 11 corresponding 3-deoxy-3-arylamido-beta-talopyranosides have been synthesized and evaluated as inhibitors against galectin-1, -2, -3, -4C, -4N, -7, -8N and -9N. The synthesized talosamides showed selectivity for Galectin-4C with three of the mono-saccharides having dissociation constants at around 100 mu M against the lectin, which is more than two orders of magnitude better than methyl beta-galactoside and significantly better than the previous best galectin-4C monosaccharide inhibitor. (C) 2011 Elsevier Ltd. All rights reserved.

AB - 3-Deoxy-3-amino-beta-D-talopyranosides have been synthesized for the first time. The amines were obtained from galactopyranosides through 2,3-anhydrogulosides that were opened to idosides followed by an oxidation/reductive amination sequence. From the amines, 11 corresponding 3-deoxy-3-arylamido-beta-talopyranosides have been synthesized and evaluated as inhibitors against galectin-1, -2, -3, -4C, -4N, -7, -8N and -9N. The synthesized talosamides showed selectivity for Galectin-4C with three of the mono-saccharides having dissociation constants at around 100 mu M against the lectin, which is more than two orders of magnitude better than methyl beta-galactoside and significantly better than the previous best galectin-4C monosaccharide inhibitor. (C) 2011 Elsevier Ltd. All rights reserved.

KW - Talose

KW - Talopyranoside

KW - Talosamide

KW - Galectin

KW - Galectin-4C

U2 - 10.1016/j.tet.2011.09.098

DO - 10.1016/j.tet.2011.09.098

M3 - Article

VL - 67

SP - 9164

EP - 9172

JO - Tetrahedron

T2 - Tetrahedron

JF - Tetrahedron

SN - 0040-4020

IS - 47

ER -