使用DMSO中的无机试剂NH 2 OH / Na 2 CO 3 / SO 2 F 2将醛(RCHO)直接转化为腈(RCN)的级联过程
摘要:
使用无机试剂(NH 2 OH / Na 2 CO )开发了一种简单,温和且实用的方法,将醛直接转化为腈,可在较宽的底物范围内实现出色的官能团耐受性(52个实例,大多数情况下产率超过90%)3 / SO 2 F 2)在DMSO中。该方法允许以易用,原子和步经济的方式将易于获得,廉价且丰富的醛转化为高度有价值的腈,而无需过渡金属。该协议将作为将氰基部分安装到复杂分子的强大工具。
[EN] HORMONE RECEPTOR MODULATORS FOR TREATING METABOLIC CONDITIONS AND DISORDERS<br/>[FR] MODULATEURS DU RÉCEPTEUR HORMONAL POUR LE TRAITEMENT D'ÉTATS ET DE TROUBLES MÉTABOLIQUES
申请人:ARDELYX INC
公开号:WO2018039386A1
公开(公告)日:2018-03-01
The invention relates to activators of FXR useful in the treatment of autoimmune disorders, liver disease, intestinal disease, kidney disease, cancer, and other diseases in which FXR plays a role, having the Formula (I): (I), wherein L1, A, X1, X2, R1, R2, and R3 are described herein.
Discovery, Synthesis, and Biological Evaluation of a Novel Group of Selective Inhibitors of Filoviral Entry
作者:Maria V. Yermolina、Jizhen Wang、Michael Caffrey、Lijun L. Rong、Duncan J. Wardrop
DOI:10.1021/jm1008715
日期:2011.2.10
Herein, we report the development of an antifiloviral screening system, based on a pseudotyping strategy, and its application in the discovery of a novel group of small molecules that selectivelyinhibit the Ebola and Marburg glycoprotein (GP)-mediated infection of human cells. Using Ebola Zaire GP-pseudotyped HIV particles bearing a luciferase reporter gene and 293T cells, a library of 237 small molecules
在此,我们报告了基于假型策略的抗丝病毒筛选系统的开发,及其在发现一组新的小分子中的应用,这些小分子选择性地抑制了埃博拉病毒和马尔堡糖蛋白 (GP) 介导的人类细胞感染。使用带有荧光素酶报告基因和 293T 细胞的 Ebola Zaire GP 假型 HIV 颗粒,筛选了 237 个小分子库以抑制 GP 介导的病毒进入。从该测定中,先导化合物8a被鉴定为丝状病毒进入的选择性抑制剂,IC 5030 μM。为了分析功效的官能团要求,然后使用“点击”化学制备的 56 种异恶唑和三唑衍生物对这种 3,5-二取代异恶唑进行结构-活性关系分析。该研究表明,虽然异恶唑环可以被三唑系统取代,但在8a 中发现的 5-(二乙氨基)乙酰胺取代基是抑制病毒细胞进入所必需的。3-芳基取代基的变化提供了许多更有效的抗病毒剂,IC 50值范围为2.5 μM。还发现先导化合物8a及其三种衍生物可阻断马尔堡糖蛋白 (GP) 介导的人类细胞感染。
Hypervalent Iodine Reagent Mediated Oxidative Heterocyclization of Aldoximes with Heterocyclic Alkenes
作者:Akira Yoshimura、Khiem C. Nguyen、Gregory T. Rohde、Pavel S. Postnikov、Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1021/acs.joc.7b01462
日期:2017.11.17
An efficient cycloaddition of heterocyclic alkenes with nitrile oxides generated in situ from the corresponding aldoximes using organohypervalent iodine(III) reagent, [hydroxy(tosyloxy)iodo]benzene (Koser’s reagent), has been developed. The oxidative cyclization of various aldoximes with 1-propene-1,3-sultone affords the respective isoxazoline-ring-fused heterobicyclic products in moderate to good
Discovery and structural development of small molecules that enhance transport activity of bile salt export pump mutant associated with progressive familial intrahepatic cholestasis type 2
Progressive familial intrahepatic cholestasis type 2 (PFIC2) is caused by hereditary mutations of bile salt export pump (BSEP), such as E297G BSEP, which is a folding-defective mutant that is unable to traffic beyond the endoplasmic reticulum (ER). 4-Phenylbutyric acid (4-PBA) enhances the cell surface expression and transport capacity of E297G BSEP, but has a relatively high dose (1 mM or more) is