α-1-C-Butyl-1,4-dideoxy-1,4-imino-l-arabinitol as a Second-Generation Iminosugar-Based Oral α-Glucosidase Inhibitor for Improving Postprandial Hyperglycemia | doi.page

0 citations0 references

α-1-C-Butyl-1,4-dideoxy-1,4-imino-l-arabinitol as a Second-Generation Iminosugar-Based Oral α-Glucosidase Inhibitor for Improving Postprandial Hyperglycemia

Journal of Medicinal Chemistry2012Vol. 55(23), pp. 10347–10362

Citations Over TimeTop 10% of 2012 papers

Atsushi Kato, Erina Hayashi, Saori Miyauchi, Isao Adachi, Tatsushi Imahori, Yoshihiro Natori, Yuichi Yoshimura, Robert J. Nash, Hideyuki Shimaoka, Izumi Nakagome, Jun Koseki, Shuichi Hirono, Hiroki Takahata

Abstract

We report on the synthesis and the biological evaluation of a series of α-1-C-alkylated 1,4-dideoxy-1,4-imino-l-arabinitol (LAB) derivatives. The asymmetric synthesis of the derivatives was achieved by asymmetric allylic alkylation, ring-closing metathesis, and Negishi cross-coupling as key reactions. α-1-C-Butyl-LAB is a potent inhibitor of intestinal maltase, isomaltase, and sucrase, with IC50 values of 0.13, 4.7, and 0.032 μM, respectively. Matrix-assisted laser desorption ionization time-of-flight mass spectrometric analysis revealed that this compound differs from miglitol in that it does not influence oligosaccharide processing and the maturation of glycoproteins. A molecular docking study of maltase-glucoamylase suggested that the interaction modes and the orientations of α-1-C-butyl-LAB and miglitol are clearly different. Furthermore, α-1-C-butyl-LAB strongly suppressed postprandial hyperglycemia at an early phase, similar to miglitol in vivo. It is noteworthy that the effective dose was about 10-fold lower than that for miglitol. α-1-C-Butyl-LAB therefore represents a new class of promising compounds that can improve postprandial hyperglycemia.

Citations Over TimeTop 10% of 2012 papers

Abstract

Related Papers