[EN] FLUOROPHENYL SUBSTITUTED MUSCARINIC RECEPTOR LIGANDS WITH SELECTIVITY FOR M3 OVER M2<br/>[FR] LIGANDS DES RÉCEPTEURS MUSCARINIQUES À SUBSTITUTION FLUOROPHÉNYLE AYANT UNE SÉLECTIVITÉ POUR M3 SUR M2
申请人:UNIV FRIEDRICH ALEXANDER ER
公开号:WO2019110521A1
公开(公告)日:2019-06-13
The present invention relates to fluorophenyl substituted muscarinic receptor ligands with selectivity for M3 over M2 and to the use of these compounds in the treatment of various diseases such as asthma, chronic obstructive pulmonary disease (COPD), bronchopulmonary dysplasia (BPD) and urinary incontinence.
metal-catalysed reactions rely on stoichiometric quantities of an exogenous base to enable catalytic turnover. Despite playing a fundamental role, the base poses major challenges, such as restricting the accessible chemical space or causing heterogeneous reaction mixtures. Here we introduce a unifying strategy that eliminates the need for an exogenous base through the use of non-innocent electrophiles (NIE)
许多重要的过渡金属催化反应依赖于化学计量数量的外源碱来实现催化周转。尽管发挥了基础性作用,但碱基也带来了重大挑战,例如限制可接近的化学空间或导致多相反应混合物。在这里,我们介绍了一种统一策略,该策略通过使用非无辜亲电试剂 (NIE) 消除了对外源碱基的需求,NIE 配备了在反应过程中以受控方式释放的掩蔽碱基。通过将多个传统上依赖碱基的催化反应转变为外源无碱基均相过程,证明了这一概念的普遍适用性。此外,NIE 的优势特性在多个应用中得到了证明,例如在基于微摩尔级荧光的测定中。这导致发现了使用异丙醇作为良性还原剂的氨基甲酸芳基酯的镍催化脱氧反应。在更广泛的背景下,这项工作为 NIE 在催化中的战略利用提供了概念蓝图。
P<sup>(III)</sup>-Promoted Reductive Coupling of Aromatic and Aliphatic Nitro Compounds with Grignard Reagents
作者:Shan-Shui Meng、Fei Li、Xiaowen Tang、Albert S. C. Chan
DOI:10.1021/acs.orglett.3c01167
日期:2023.5.26
coupling of nitro compounds with Grignard reagents is described. Polyfunctional and pharmaceutically relevant diarylamines were generated by this reaction in moderate to high yields. Aliphatic nitro compounds that are highly challenging substrates undergo a combination of α-arylation and reductive coupling to afford the α-arylated arylamines efficiently. A series of valuable biaryl compounds with polyfluorinated
Solvent-free N-arylation of amines with arylboronic acids under ball milling conditions
作者:Xingyi Zhu、Qihong Zhang、Weike Su
DOI:10.1039/c4ra02952f
日期:——
Solvent-free coupling reactions of arylboronic acids with various amines were presented under ball milling conditions, achieving the aromatic amine coupling products with yields ranging from moderate to good. This type of mechano-chemistry exhibited advantages of solvent-free property, high efficiency, simple work-up procedure and eco-friendliness.