Synthesis of triazole-linked β-C-glycosyl dimers as inhibitors of PTP1B
摘要:
Protein tyrosine phosphatase 1B (PTP1B) has emerged as a promising target for type 2 diabetes. We have successfully synthesized dimeric acetylated and benzoylated beta-C-D-glucosyl and beta-C-D-galactosyl 1,4-dimethoxy benzenes or naphthalenes by click chemistry. These compounds were further transformed into the corresponding beta-C-D-glycosyl-1,4-quinone derivatives by CAN oxidation. The in vitro inhibition test showed that dimeric benzoylated beta-C-D-glycosyl 1,4-dimethoxybenzenes or 1,4-benzoquinones were good inhibitors of PTP1B (IC50: 0.62-0.88 mu M), with no significant difference between gluco and galacto derivatives. (C) 2008 Elsevier Ltd. All rights reserved.
β-C-Glycosiduronic acids and β-C-glycosyl compounds: New PTP1B inhibitors
摘要:
beta-C-Glycosiduronic acid quinones and beta-C-glycosyl compounds have been synthesized as sugar-based PTP1B inhibitors. Benzoyl protected quinone derivatives (14 and 35) as well as aryl beta-C-glycosyl compounds (18, 22, 23 and 34) showed IC50 values of 0.77-5.27 mu M against PTP1B, with compounds 18 and 23 bearing an acidic function being the most potent. (C) 2008 Elsevier Ltd. All rights reserved.