Synthesis of 2,3-Disubstituted Indoles and Benzofurans by the Tandem Reaction of Rhodium(II)-Catalyzed Intramolecular C–H Insertion and Oxygen-Mediated Oxidation
作者:Hongjuan Shen、Junkai Fu、Hao Yuan、Jianxian Gong、Zhen Yang
DOI:10.1021/acs.joc.6b00611
日期:2016.11.4
A highly effective and straightforward method to construct a wide range of functionalized 2,3-disubstituted indoles has been developed. The method involves the tandem reaction of rhodium(II)-catalyzed denitrogenative annulation of triazole-based benzyl anilines and oxygen-mediated oxidative aromatization. The developed method can also be used to synthesize 2,3-disubstituted benzofurans by replacing
Copper‐Catalyzed Asymmetric Diyne Cyclization via [1,2]‐Stevens‐Type Rearrangement for the Synthesis of Chiral Chromeno[3,4‐
<i>c</i>
]pyrroles
作者:Feng‐Lin Hong、Chong‐Yang Shi、Pan Hong、Tong‐Yi Zhai、Xin‐Qi Zhu、Xin Lu、Long‐Wu Ye
DOI:10.1002/anie.202115554
日期:2022.2.7
copper-catalyzed asymmetric cascade cyclization/[1,2]-Stevens-type rearrangement is disclosed, affording valuable chiral chromeno[3,4-c]pyrroles bearing a quaternary carbon stereocenter in generally moderate to good yields with excellent enantioselectivities. Importantly, this protocol represents the first catalytic asymmetric [1,2]-Stevens-type rearrangement based on alkynes and the first asymmetric formal carbene
公开了一种铜催化的不对称级联环化/[1,2]-Stevens 型重排,以通常中等至良好的产率和优异的对映选择性提供有价值的手性色烯并[3,4- c ]吡咯,其具有季碳立体中心。重要的是,该协议代表了第一个基于炔烃的催化不对称 [1,2]-史蒂文斯型重排和第一个不对称的形式卡宾插入 Si-O 键。
Method of combatting coronary and vascular diseases
申请人:Bayer Aktiengesellschaft
公开号:US04532248A1
公开(公告)日:1985-07-30
1,4-Dihydropyridines of the formula ##STR1## in which n is 0,1 or 2, and R.sup.1 to R.sup.7 can have a wide variety of meanings, which possess inotropic action, and many of which are new, are useful in increasing the influx of Ca.sup.++ into cells, particularly in combatting coronary and vascular diseases, hypertension swelling in the mucous membranes and diseases involving increased blood sugar or an incorrect salt and fluid balance.
Synthesis, In Vitro and In Silico NS5B Polymerase Inhibitory Activity of Benzimidazole Derivatives
作者:Vaishali M. Patil、Gurukumar K. R.、Maksim Chudayeu、Satya Prakash Gupta、Subeer Samanta、Neeraj Masand、Neerja Kaushik-Basu
DOI:10.2174/157340612801216120
日期:2012.6.1
HepatitisC virus (HCV) NS5B polymerase is the key replicating protein of the virus and thus an attractive target for drug development. Here we report on the synthesis and biological evaluation of a new series of benzimidazole derivatives as HCV NS5B inhibitors. This yielded compound 6b and 6d bearing 2-(2-benzyloxy)phenyl and 2-(4- methylbenzyloxy)phenyl moieties, respectively, as promising leads
Dihydropyridine mit positiv inotroper Wirkung, neue Verbindungen, ihre Verwendung in Arzneimitteln und Verfahren zu ihrer Herstellung
申请人:BAYER AG
公开号:EP0071819A1
公开(公告)日:1983-02-16
Die vorliegende Erfindung betrifft die Verwendung von neuen und bekannten Dihydropyridinen in Arzneimitteln mit positiv inotroper Wirkung der allgemeinen Formel I
in weicher n, R1, R2, R', R4, R6, R6 und R7 die in der Beschreibung angegebene Bedeutung besitzen, neue Verbindungen aus dieser Stoffklasse, diese enthaltende Arznelmittel und ihre Herstellung.
本发明涉及新的和已知的二氢吡啶在具有正性肌力作用的药物中的应用,其通式为 I
中软 n、R1、R2、R'、R4、R6、R6 和 R7 的含义、这类物质的新化合物、含有它们的药物组合物及其制备方法。