Iron-Catalyzed, Chelation-Induced Remote C–H Allylation of Quinolines via 8-Amido Assistance
摘要:
An iron-catalyzed, 8-amido-enabled regiodivergent C-H allylation of quinolines is described. This reaction represents a rare example of chelation-induced geometrically inaccessible C-H functionalization, allowing for the highly regio- and stereoselective preparation of either the C5- or the C4-allylated quinoline scaffolds regiocontrolled by the catalytic systems.
Synthesis and in vitro evaluation of novel 8-aminoquinoline–pyrazolopyrimidine hybrids as potent antimalarial agents
摘要:
In the search of novel chemotherapeutic agents for emerging drug resistant parasites, the hybridization approaches have successfully emerged as an efficient tool in malarial chemotherapy. Herein, a rational design and synthesis of novel 8-aminoquinoline and pyrazolopyrimidine hybrids and their antimalarial activity against wild type Plasmodium falciparum (Pf_NF54) and resistant strain (Pf_K1) is reported. The medicinal chemistry approach to expand the scope of this series resulted in an identification of potent compounds with nanomolar potency (best IC50 5-10 nM). Systematic structure activity relationship (SAR) studies revealed that pyrazolopyrimidine and 8-aminoquinoline ring are essential for achieving good P. falciparum potency. The docking study revealed that the compound 6 can retain some of the critical interactions within pfDHODH drug target. (C) 2015 Elsevier Ltd. All rights reserved.
(8-Amino)quinoline and (4-amino)phenanthridine complexes of Re(CO)3 halides
作者:Sanjay Gaire、Robert J. Ortiz、Briana R. Schrage、Issiah B. Lozada、Pavan Mandapati、Allen J. Osinski、David E. Herbert、Christopher J. Ziegler
DOI:10.1016/j.jorganchem.2020.121338
日期:2020.8
present a study on the synthesis, structure and electronics of a series of (8-amino)quinoline and (4-amino)phenanthridine complexes of Re(CO)3X, where X = Cl and Br. In all cases, the (amino)heterocycles bind as bidentate ligands, with surprisingly symmetric modes of binding based on Re–N bond lengths. Between the complexes of (8-amino)quinolines and (4-amino)phenanthridines studied in this report, we do
Transition-Metal-Free Regioselective C-H Bond Fluorination of 8-Amidoquinolines with Selectfluor
作者:Hao Chen、Pinhua Li、Min Wang、Lei Wang
DOI:10.1002/ejoc.201800389
日期:2018.5.15
A simple and efficient transition‐metal‐free protocol was developed for the fluorination of the 5‐position of 8‐aminoquinolines with Selectfluor. Numerous substituted 8‐aminoquinoline amides were tolerated under the reaction conditions to give the corresponding products in good yields.
The present invention relates to novel hepcidin antagonists, pharmaceutical compositions comprising them and the use thereof as medicaments for the use in the treatment of iron metabolism disorders, such as, in particular, iron deficiency diseases and anemias, in particular anemias in connection with chronic inflammatory diseases.
Copper-Catalyzed C5–H Sulfenylation of Unprotected 8-Aminoquinolines Using Sulfonyl Hydrazides
作者:Qing Yu、Yiming Yang、Jie-Ping Wan、Yunyun Liu
DOI:10.1021/acs.joc.8b01658
日期:2018.9.21
unprotected 8-aminoquinolines and sulfonyl hydrazides is achieved via the catalysis of CuI. The reactions are hypothesized to proceed via the Cu(I)–Cu(II)–Cu(I) catalytic processes induced by aerobic oxidation and single-electron transfer on the Cu(II)–8-aminoquinoline complex. This work discloses an unprecedented step-efficient method for the synthesis of C5-sulfenylated 8-aminoquinolines bearing a useful free
[EN] QUINOLINYL-PYRAZINE-CARBOXAMIDE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS DE QUINOLINYL-PYRAZINE-CARBOXAMIDE ET UTILISATIONS ASSOCIÉES
申请人:UNIV MICHIGAN REGENTS
公开号:WO2020132459A1
公开(公告)日:2020-06-25
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a quinolinyl-pyrazine-carboxamide (or similar) structure which function as activators of the cholesterol biosynthesis pathway within cancer cells and/or immune cells, which function as activators of the cell cycle regulation pathway within cancer cells and/or immune cells, and which function as up-regulators of HMGCS1 protein expression within cancer cells and/or immune cells, and which function as effective therapeutic agents for treating, ameliorating, and preventing various forms of cancer and other inflammatory disease.