Visible Light‐Induced Decarboxylative Alkylation of Heterocyclic Aromatics with Carboxylic Acids via Anthocyanin as a Photocatalyst
作者:Rui Guo、Minghui Zuo、Qinye Tian、Chuanfu Hou、Shouneng Sun、Weihao Guo、Hongfeng Wu、Wenyi Chu、Zhizhong Sun
DOI:10.1002/asia.202000277
日期:2020.7
A visiblelight‐induced decarboxylative alkylation of heterocyclic aromatics with aliphatic carboxylicacids was developed by using anthocyanins as a photocatalyst under mild conditions. A series of alkylated heterocyclic compounds were obtained in moderate to good yields by using the metal‐free decarboxylative coupling reaction under blue light. This strategy uses cheap and readily available carboxylic
QUINUCLIDINE COMPOUNDS AS ALPHA-7 NICOTINIC ACETYLCHOLINE RECEPTOR LIGANDS
申请人:Cook, II James H.
公开号:US20090270405A1
公开(公告)日:2009-10-29
The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands for the nicotinic α7 receptor and may be useful for the treatment of various disorders of the central nervous system, especially affective and neurodegenerative disorders.
NOVEL MACROCYCLIC INHIBITORS OF HEPATITIS C VIRUS REPLICATION
申请人:Seiwert Scott D.
公开号:US20090269305A1
公开(公告)日:2009-10-29
The embodiments provide compounds of the general Formulae I, II, III, IV, V, VI, VII, and X, as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition.
Visible-light induced decarboxylative C2-alkylation of benzothiazoles with carboxylic acids under metal-free conditions
作者:Bin Wang、Pinhua Li、Tao Miao、Long Zou、Lei Wang
DOI:10.1039/c8ob02476f
日期:——
C2-alkylation of benzothiazoles with aliphatic carboxylic acids was disclosed. In the presence of an acridinium salt as a photocatalyst and air as an oxidant, a wide range of secondary or tertiary aliphatic carboxylic acids were employed as alkylation reagents, providing the desired products in good to excellent yields under mild reaction conditions with a broad substrate scope.
A novel and efficient silver catalyzed decarboxylative direct C2-alkylation of benzothiazoles with carboxylic acids for the synthesis of 2-alkyl benzothiazoles was developed.