Muscarinic M2 antagonists: anthranilamide derivatives with exceptional selectivity and in vivo activity
摘要:
Anthranilamide analogues such as 23 are potent and highly selective muscarinic M2 antagonists that also show good oral bioavailability and in vivo activity. (C) 2003 Elsevier Ltd. All rights reserved.
Arenesulfonyl Fluoride Synthesis via Copper-Catalyzed Fluorosulfonylation of Arenediazonium Salts
作者:Yongan Liu、Donghai Yu、Yong Guo、Ji-Chang Xiao、Qing-Yun Chen、Chao Liu
DOI:10.1021/acs.orglett.0c00484
日期:2020.3.20
We report herein a general and practical copper-catalyzed fluorosulfonylation reaction of a wide range of abundant arenediazonium salts to smoothly prepare various arenesulfonylfluorides using the 1,4-diazabicyclo[2.2.2]octane-bis(sulfur dioxide) adduct as a convenient sulfonyl source in combination with KHF2 as an ideal fluorine source and without the need for additional oxidants. Interestingly,
MUSCARINIC M2 RECEPTOR BLOCKADE TO DELAY OR PREVENT ONSET OF PROGRESSIVE MEMORY DECLINE
申请人:United States Government as Represented by The Department of Veterans Affairs
公开号:US20180256559A1
公开(公告)日:2018-09-13
Provided are methods for delaying or preventing onset of progressive memory decline by administering a muscarinic M2 receptor blocking compound to patients identified as at risk of developing a condition characterized by progressive memory decline, prior to onset of the condition.
A highly efficient method for the synthesis of aryl sulfonyl fluorides was developed from aryl sulfonyl chlorides using SO2F2 as fluoride source in up to 98% isolated yield under mild conditions. Gram scale experiments were also conducted, revealing the good practicality of this new protocol.
一种高效合成芳基磺酰氟的方法是从芳基磺酰氯中开发的,使用 SO 2 F 2作为氟化物源,在温和条件下分离收率高达 98%。还进行了克级实验,揭示了这种新协议的良好实用性。
Arenesulfonyl fluoride synthesis via one-pot copper-free Sandmeyer-type three-component reaction of aryl amine, K2S2O5, and NFSI
作者:Zhanhu Ma、Lingling Shan、Xiaoyu Ma、Xiaojun Hu、Yong Guo、Qing-Yun Chen、Chao Liu
DOI:10.1016/j.jfluchem.2022.109948
日期:2022.2
A one-pot procedure for the synthesis of arenesulfonyl fluorides from arylamine is developed with K2S2O5 and N-fluorobenzenesulfonimide (NFSI) as the sulfur dioxide surrogate and fluorine source, respectively. This method realizes the direct introduction of sulfonyl fluoride groups into arenes from abundant arylamines under transition-metal-free catalysis conditions, and features its mild and practical
采用 K 2 S 2 O 5和 N-氟苯磺酰亚胺 (NFSI) 分别作为二氧化硫替代物和氟源,开发了一种从芳胺合成芳基磺酰氟的一锅法。该方法实现了在无过渡金属催化条件下从丰富的芳胺中直接将磺酰氟基团引入芳烃中,具有条件温和实用、官能团耐受性好的特点。
Visible‐Light‐Mediated Synthesis of Sulfonyl Fluorides from Arylazo Sulfones
作者:Tien Tan Bui、Van Hieu Tran、Hee‐Kwon Kim
DOI:10.1002/adsc.202100951
日期:2022.1.18
Sulfonyl fluorides are useful motifs for a wide range of applications in organic synthesis including sulfur (VI) fluoride exchange-based “click chemistry.” Herein, a visible-light-mediated synthesis of sulfonyl fluoridesfrom arylazo sulfones is described. In the present study, K2S2O5 and N-fluorobenzenesulfonimide (NFSI) were used as the sulfonyl source and fluorinating agent, respectively, for v
磺酰氟是有机合成中广泛应用的有用基序,包括基于硫 (VI) 氟化物交换的“点击化学”。本文描述了一种由芳基砜合成磺酰氟的可见光介导合成方法。在本研究中,K 2 S 2 O 5和N-氟苯磺酰亚胺 (NFSI) 分别用作磺酰源和氟化剂,用于可见光介导的芳基砜的氟磺酰化,制备 60-85% 的各种磺酰氟。屈服。该协议是一种合成方法,可在室温下提供有用的磺酰氟结构。