[EN] THE TOTAL SYNTHESIS OF GLUCOSEPANE AND COMPOUNDS OBTAINED THEREFROM<br/>[FR] SYNTHÈSE TOTALE DE GLUCOSÉPANE ET COMPOSÉS OBTENUS À PARTIR DE CELLE-CI
申请人:UNIV YALE
公开号:WO2017053776A1
公开(公告)日:2017-03-30
Glucosepane is a structurally complex protein post-translational modification (PTM) believed to exist in all living organisms. Research in humans suggests that glucosepane plays a critical role in the pathophysiology of both diabetes and human aging; yet comprehensive biological investigations of this 'metabolite have been 'greatly hindered by a scarcity of chemically homogeneous material available for study. Glucosepane possesses a unique chemical structure that incorporates a surprising, never-before-prepared non-aromatic tautomer of imidazole (hereafter termed an "iso-imidazole"), rendering it a challenging target for chemical synthesis. In this application, the inventors report the first total synthesis of glucosepane, enabled by the development of a novel one-pot method for preparation of the iso-imidazole core. The synthesis of the present invention is concise (8-steps starting from commercial materials), convergent, high-yielding (12% overall), and enantioselective. These results should prove useful to the art and practice of heterocyclic chemistry, and critical for the study of glucosepane and its role in human health and disease, especially the treatment of diabetic disorders or its impact on aging processes. Methods of synthesis, compounds obtained therefrom, pharmaceutical compositions and methods of treatment provide embodiments of the present invention.
葡萄糖胺是一种结构复杂的蛋白后翻译修饰(PTM),被认为存在于所有生物体中。人类的研究表明,葡萄糖胺在糖尿病和人类衰老的病理生理学中起着关键作用;然而,对这种“代谢产物”的全面生物学研究受到可供研究的化学均一材料的稀缺性的极大阻碍。葡萄糖胺具有独特的化学结构,其中包含一个令人惊讶的、从未制备过的非芳香咪唑互变异构体(以下简称“异咪唑”),使其成为化学合成的一个具有挑战性的目标。在本申请中,发明人报告了葡萄糖胺的首次全合成,该合成是通过开发一种新型一锅法制备异咪唑核心而实现的。本发明的合成方法简明(从商业材料开始的8步),收率高(总体为12%),对映选择性高。这些结果应该对杂环化学的艺术和实践有用,并且对研究葡萄糖胺及其在人类健康和疾病中的作用、特别是治疗糖尿病或其对衰老过程的影响至关重要。本发明提供了合成方法、从中获得的化合物、制药组合物和治疗方法的实施例。