Design, synthesis, and biological activity of diaryl ether inhibitors of Toxoplasma gondii enoyl reductase
摘要:
Triclosan is a potent inhibitor of Toxoplasma gondii enoyl reductase (TgENR), which is an essential enzyme for parasite survival. In view of triclosan's poor druggability, which limits its therapeutic use, a new set of B-ring modified analogs were designed to optimize its physico-chemical properties. These derivatives were synthesized and evaluated by in vitro assay and TgENR enzyme assay. Some analogs display improved solubility, permeability and a comparable MIC50 value to that of triclosan. Modeling of these inhibitors revealed the same overall binding mode with the enzyme as triclosan, but the B-ring modifications have additional interactions with the strongly conserved Asn130. (C) 2013 Elsevier Ltd. All rights reserved.
Iodine-catalyzed sulfonylation of sulfonyl hydrazides with <i>tert</i>-amines: a green and efficient protocol for the synthesis of sulfonamides
作者:Jinyang Chen、Xiaoran Han、Lan Mei、Jinchuan Liu、Kui Du、Tuanwu Cao、Qiang Li
DOI:10.1039/c9ra07361b
日期:——
This study provides a direct, sustainable and eco-friendly method for the synthesis of various sulfonamides via the sulfonylation of sulfonyl hydrazides with tert-amines. The method utilizes sulfonyl hydrazides to oxidize and couple with tertiary amines through selective cleavage of C–N bonds. In this reaction, molecular iodine was used as the catalyst and t-butyl hydroperoxide was used as the oxidant
TBAI-catalyzed selective synthesis of sulfonamides and β-aryl sulfonyl enamines: coupling of arenesulfonyl chlorides and sodium sulfinates with <i>tert</i>-amines
A simple, practical and metal-free method has been developed for the synthesis of sulfonamides and β-arylsulfonyl enamines via the selective cleavage of C–N and C–H bonds through the iodine-catalyzed oxidation of arenesulfonyl chlorides and sodiumsulfinates with tert-amines. The method uses commercially available inexpensive catalysts and oxidants, and has a wide substrate scope and operational simplicity
Differentiation and functionalization of remote C–H bonds in adjacent positions
作者:Hang Shi、Yi Lu、Jiang Weng、Katherine L. Bay、Xiangyang Chen、Keita Tanaka、Pritha Verma、Kendall N. Houk、Jin-Quan Yu
DOI:10.1038/s41557-020-0424-5
日期:2020.4
two positions. Herein, we report the design of a catalytic system leveraging a remote directing template and a transient norbornene mediator to selectively activate a previously inaccessible remoteC-H bond that is one bond further away. The generality of this approach has been demonstrated with a range of heterocycles, including a complex anti-leukaemia agent and hydrocinnamic acid substrates.
A compound selected from those of formula (I):
wherein:
X represents a C(O) or SO
2
group,
R
1
represents an aryl group or a group NR
3
R
4
wherein R
3
and R
4
are as defined in the description,
R
2
represents an alkyl, (C
3
-C
8
)cycloalkyl or (C
3
-C
8
)cycloalkyl-(C
1
-C
6
)alkyl group, its isomers, and addition salts thereof,
and medicinal products containing the same which are useful in treating conditions treatable by antagonists of type H
3
central histamine receptors.
[EN] MORPHOLINONE COMPOUNDS AS FACTOR IXA INHIBITORS<br/>[FR] COMPOSÉS DE MORPHOLINONE EN TANT QU'INHIBITEURS DE FACTEUR IXA
申请人:MOCHIDA PHARM CO LTD
公开号:WO2010065717A1
公开(公告)日:2010-06-10
The present invention provides a compound of Formula (I) as described herein, or a pharmaceutically acceptable salt or a solvate thereof. The present invention also provides pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing a thromboses, embolisms, hypercoagulability or fibrotic changes.