Thiocyanate radical mediated dehydration of aldoximes with visible light and air
作者:Yong-Liang Ban、Jian-Ling Dai、Xiao-Ling Jin、Qing-Bao Zhang、Qiang Liu
DOI:10.1039/c9cc05354a
日期:——
We developed a new means of activating aldoximes by an in situ generated thiocyanate radical from ammonium thiocyanate and molecular oxygen at room temperature. With a catalytic amount of organic dye aizenuranine as the photocatalyst, the dehydration of aldoximes proceeds smoothly under visiblelight irradiation, providing a simple to handle, excellent functional group tolerance, and metal-free protocol
We report an efficient approach to synthesize sulfonated indenones via a radical cascade cyclization of 2-alkynylbenzonitriles with sodium arylsulfinates.
The design and optimization of a novel isoxazole S1 linker for renininhibitor is described herein. This effort culminated in the identification of compound 18, an orally bioavailable, sub-nanomolar renininhibitor even in the presence of human plasma. When compound 18 was found to inhibit CYP3A4 in a time dependent manner, two strategies were pursued that successfully delivered equipotent compounds
[EN] 1,3-SUBSTITUTED CYCLOBUTYL DERIVATIVES AND USES THEREOF<br/>[FR] DÉRIVÉS DE CYCLOBUTYLE 1,3-SUBSTITUÉS ET LEURS UTILISATIONS
申请人:NOVARTIS AG
公开号:WO2022201097A1
公开(公告)日:2022-09-29
Provided herein are compounds and pharmaceutical compositions useful for treating diseases or disorders mediated by the TRPV1 receptor. The present invention also provides methods for treating ocular diseases or disorders by administering to a subject in need thereof a therapeutically effective amount of a compound of Formula (I) or a pharmaceutical composition described herein. (I)
Copper‐Catalyzed C(<i>sp</i><sup>3</sup>)− Functionalization and Annulation of 2‐Bromoaryl Oximes with Active Methylene Compounds towards Synthesis of Isoquinoline <i>N</i>‐Oxides
作者:Chandresh K. Patel、Raghuram Gujjarappa、Kamal Kant、Susanta Ghanta、Virender Singh、Arup K. Kabi、Nabil Al‐Zaqri、Chandi C. Malakar
DOI:10.1002/adsc.202300217
日期:2023.7.4
(II)-catalyzed C(sp3)− functionalization of β-diketones/β-ketoesters with 2-bromobenzaldehyde oximes followed by the intramolecular cyclization of in situ generated acylated intermediates to deliver isoquinoline N-oxides. The copper(II) acetate catalyzed C−H functionalization showed maximum efficacy at 60 °C in methanol/toluene as solvent. The described reaction conditions were applicable over a wide range of
所建立的过程通过铜 (II) 催化的β-二酮/ β-酮酯与 2-溴苯甲醛肟的C( sp 3 )− 官能化,然后原位生成的酰化中间体进行分子内环化,以提供异喹啉N-氧化物。乙酸铜 (II) 催化的 CH 官能化在 60 °C、以甲醇/甲苯为溶剂中显示出最大功效。所描述的反应条件适用于具有多种官能团的多种底物,以产生异喹啉N-氧化物,产率高达85%。通过控制实验和 DFT 计算进一步阐明了所开发的方法。