17042-40-9Relevant articles and documents
Chemical synthesis and pharmacological properties of heparin pentasaccharide analogues
Luo, Lan,Wu, Jian,Wu, Mingyi,Wu, Xin,Xu, Dan,Zhang, Linlin,Zhou, Zhipeng
, (2022/03/16)
The pentasaccharide fondaparinux is a synthetic anticoagulant based on heparin antithrombin-binding sequence. Fondaparinux improves safety and predictable pharmacodynamics compared with heparins; however, it requires a complicate synthesis process which contain more than 50 steps of synthesis. Herein, we designed and synthesized four fondaparinux analogues (compounds 1, 2, 3, 4) using a [2+3] convergent synthetic method, which greatly simplified the synthetic process, improved the product yield, and curtailed the expenditures. These synthesized compounds showed stronger anticoagulant activities by factor Xa inhibition (IC50 725–1126 nM vs. 1909 nM for fondaparinux) in the AT-dependent manner. After subcutaneous (s.c.) administration to rats, the compounds displayed long-lasting anti-factor Xa activities and inhibition of thrombin generation ex vivo. Compared with fondaparinux, these compounds were slowly eliminated after s.c. administration to rats, the half-lies (t1/2) were more than 2-fold of that of fondaparinux. These results suggested the pentasaccharide analogues may exhibit better pharmacokinetic and predictable pharmacodynamic characteristics.
Serendipitous one-pot synthesis of chiral dienes from pyranosidic 2,4-bistriflates
Rai, Diksha,Sanapala, Someswara Rao,Kulkarni, Suvarn S.
, (2021/05/28)
Attempted nucleophilic displacements of L-rhamnosyl 2,4-bistriflates led to serendipitous formation of a chiral diene via competing cascade eliminations. The reaction also followed the same pathway with D-rhamnosyl and D-mannosyl 2,4-bistriflates substrat
Synthesis of nature product kinsenoside analogues with anti-inflammatory activity
Song, Wei,Sun, Yong,Xu, Lintao,Sun, Yajing,Li, Tianlu,Peng, Peng,Lou, Hongxiang
, (2020/12/02)
Kinsenoside is the major bioactive component from herbal medicine with a broad range of pharmacological functions. Goodyeroside A, an epimer of kinsenoside, remains less explored. In this report we chemically synthesized kinsenoside, goodyeroside A and their analogues with glycan variation, chirality inversion at chiral center(s), and bioisosteric replacement of lactone with lactam. Among these compounds, goodyeroside A and its mannosyl counterpart demonstrated superior anti-inflammatory efficacy. Furthermore, goodyeroside A was found to suppresses inflammatory through inhibiting NF-κB signal pathway, effectively. Structure-activity relationship is also explored for further development of more promising kinsenoside analogues as drug candidates.