Copper-Catalyzed Synthesis of Functionalized Aryl Sulfonamides from Sodium Sulfinates in Green Solvents
作者:Long Yin Lam、King Hong Chan、Cong Ma
DOI:10.1021/acs.joc.2c00777
日期:2022.7.1
industry. A one-step synthesis catalyzed by a copper salt was developed using stable solid commodity chemicals in sulfolane or, alternatively, in green solvents such as γ-valerolactone, iPrOAc, or nBuOAc with acetic acid. The method tolerated diverse functional groups commonly presented in current medicines and drug intermediates. The mechanistic study showed a radical coupling pathway between the sulfonyl
官能化芳基磺酰胺是制药工业中的重要组成部分。使用稳定的固体商品化学品在环丁砜中或在绿色溶剂(如 γ-戊内酯、 i PrOAc 或n BuOAc 与乙酸)中开发了由铜盐催化的一步合成。该方法耐受当前药物和药物中间体中常见的多种官能团。机理研究表明,磺酰基和苯胺自由基之间的自由基偶联途径分别通过使用 K 2 S 2 O 8和铜催化剂。
Chemical entities that kill senescent cells for use in treating age-related disease
申请人:Unity Biotechnology, Inc.
公开号:US10195213B2
公开(公告)日:2019-02-05
Disclosed herein are compounds that are effective for treatment of various disease states associated with senescence. The disclosed compounds can be used to eliminate senescent cells for disease treatment. The dosing of the compounds includes both single administration and regimens of cycling dosages.