1,1-二氧杂萘[1,2- b ]噻吩-2-甲氧基羰基(α-Nsmoc)和3,3-二氧杂萘[ 2,1- b ]噻吩-2-甲氧基羰基(β-Nsmoc)氨基保护基†
摘要:
在Bsmoc相关的,基于萘噻吩砜基的氨基保护基的三个理论上可能的替代基团中,最易获得的两个衍生物α-和β-Nsmoc类似物已作为Bsmoc残基的替代品进行了研究。油性受保护的氨基酸或氨基酸氟化物。所有的萘系统均提供易于处理的固体氨基酸衍生物。用作引入α-Nsmoc保护基的关键试剂的中间体砜醇11很容易由α-四氢萘酮制备(方案1)。对应的β-类似物17类似地,在小规模上进行制备,但由于β-四氢萘酮的成本高,因此将罗丹宁与α-萘醛反应的替代途径用于大规模工作(方案2)。所有蛋白原氨基酸都转化为它们的α-和β-Nsmoc衍生物。脱保护研究表明,哌啶对脱保护的反应性依次为α-Nsmoc> Bsmoc>β-Nsmoc。1个1 H NMR实验表明,两个新系统的解封在机理上与先前为Bsmoc衍生物建立的解封在机理上相似,因为该反应是通过将迈克尔加成到α,β-不饱和砜系统的β-碳原子上而引发的。研究了α-
摘要 已经开发了一种简单温和的方案,使用KF / Al 2 O 3 / PEG-400作为有效的催化体系,可以从β-卤代-α,β-不饱和醛合成新型甾族和非甾族噻吩衍生物。使用Vilsmeier甲酰化反应从相应的酮合成β-卤代α-β,不饱和醛,然后将其转化为β-卤代α,β-不饱和腈。随后将合成方案应用于使用β-卤代-α,β-不饱和腈的3-氨基噻吩衍生物的合成。 已经开发了一种简单温和的方案,使用KF / Al 2 O 3 / PEG-400作为有效的催化体系,可以从β-卤代-α,β-不饱和醛合成新型甾族和非甾族噻吩衍生物。使用Vilsmeier甲酰化反应从相应的酮合成β-卤代α-β,不饱和醛,然后将其转化为β-卤代α,β-不饱和腈。随后将合成方案应用于使用β-卤代-α,β-不饱和腈的3-氨基噻吩衍生物的合成。
4H-THIENO[3,2-C]CHROMENE-BASED INHIBITORS OF NOTUM PECTINACETYLESTERASE AND METHODS OF THEIR USE
申请人:BARBOSA Joseph
公开号:US20120302562A1
公开(公告)日:2012-11-29
Compounds that may be used to inhibit Notum Pectinacetylesterase are described, as well as compositions comprising them, and methods of their use to treat diseases and disorders affecting bone.
4H-Thieno[3,2-c]chromene based inhibitors of Notum Pectinacetylesterase
作者:Qiang Han、Praveen K. Pabba、Joseph Barbosa、Ross Mabon、Jason P. Healy、Michael W. Gardyan、Kristen M. Terranova、Robert Brommage、Andrea Y. Thompson、James M. Schmidt、Alan G.E. Wilson、Xiaolian Xu、James E. Tarver、Kenneth G. Carson
DOI:10.1016/j.bmcl.2016.01.038
日期:2016.2
A group of small molecule thienochromenes inhibitors of Notum Pectinacetylesterase are described. We developed SAR on three series based on carbon, oxygen and sulfur replacement of the 5-position. In each series, highly potent Notum Pectinacetylesterase inhibitors were identified. (C) 2016 Elsevier Ltd. All rights reserved.
US7384974B2
申请人:——
公开号:US7384974B2
公开(公告)日:2008-06-10
[EN] APT1 AND APT2 INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS D'APT1 ET D'APT2 ET LEURS UTILISATIONS
申请人:[en]CORNELL UNIVERSITY
公开号:WO2022246115A1
公开(公告)日:2022-11-24
Compounds, compositions including one or more of the compound(s), and methods of using the compounds and the compositions. The compounds comprise an (I) group. In various examples, a compound is an Acyl Protein Thioesterase 1 inhibitor (APT1 inhibitor) and/or an Acyl Protein Thioesterase 2 inhibitor (APT2 inhibitor). Compound(s) or composition(s), which may be pharmaceutical composition(s), can be used in methods of treating diseases or disorders, such as, for example, autoimmune disorders, neurodegenerative disorders, inflammatory disorders, and immune-mediated cancer diseases.