Mild and efficient ligand-free copper-catalyzed condensation for the synthesis of quinazolines
摘要:
Condensation of o-iodobenzaldehydes la-c with amidine hydrochlorides 2a-p under ligand-free copper-catalyzed Ullmann N-arylation conditions afforded the corresponding quinazolines 3a-r in good to excellent yields. (C) 2009 Elsevier Ltd. All rights reserved.
Mutual Induced Fit in a Synthetic Host–Guest System
摘要:
Mutual induced fit is an important phenomenon in biological molecular recognition, but it is still rare in artificial systems. Here we report an artificial host-guest system in which a flexible calix[4]arene is enclathrated in a dynamic self-assembled host and both molecules mutually adopt specific three-dimensional structures. NMR data revealed the conformational changes, and crystallographic studies clearly established the precise structures at each stage.
[EN] COMPOSITIONS AND METHODS OF MODULATING SHORT-CHAIN DEHYDROGENASE ACTIVITY<br/>[FR] COMPOSITIONS ET PROCÉDÉS DE MODULATION DE L'ACTIVITÉ DE LA DÉSHYDROGÉNASE À CHAÎNE COURTE
申请人:UNIV CASE WESTERN RESERVE
公开号:WO2018218251A1
公开(公告)日:2018-11-29
Compounds and methods of modulating 15-PGDH activity, modulating tissue prostaglandin levels, treating disease, diseases disorders, or conditions in which it is desired to modulate 15-PGDH activity and/or prostaglandin levels include 15-PGDH inhibitors described herein.
An efficient and flexible route to novel triazolopiperazine scaffolds
作者:Olivier Lorthioir、Ryan D. Greenwood、Andrew Lister、Michael J. Tucker
DOI:10.1016/j.tetlet.2020.152600
日期:2020.12
In this work we describe the preparation of novel fused, spirocyclic and chiral triazolopiperazines. We have developed a practical, rapid and robust synthetic route to these scaffolds that allows control of regio- and stereochemistry. This method utilises mild conditions and uses widely available and diverse amino acids and amidines as starting materials. These complex unprecedented 5,6,7,8-tetrahydro-[1–2
在这项工作中,我们描述了新型的稠合,螺环和手性三唑并哌嗪的制备。我们已经为这些支架开发了一种实用,快速和强大的合成途径,从而可以控制区域化学和立体化学。该方法利用温和的条件,并使用广泛可用的多种氨基酸和am作为起始原料。这些复杂的史无前例的5,6,7,8-四氢-[1-2,4]三唑并[1,5- a ]吡嗪代表了药物开发的有吸引力的组成部分。
FLUORINE-CONTAINING PYRIMIDINE COMPOUND AND METHOD FOR MANUFACTURING THE SAME
申请人:UNIMATEC CO., LTD.
公开号:US20210403455A1
公开(公告)日:2021-12-30
A fluorine-containing pyrimidine compound is provided represented by general formula (1), (2), (3), (4), (5), or (6) below.
wherein, in the general formulae (1) to (6) above,
R represents a hydrocarbon group having 1 to 12 carbon atoms; and
X and Y each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, —C
n
F
2n+1
(n is an integer of 1 to 10), a nitro group, a boronate group, —OA
1
, —SO
m
A
1
(m is an integer of 0 to 3), —NA
1
A
2
, —COOA
1
, or —CONA
1
A
2
, and A
1
and A
2
each independently represent a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms.
FLUORINATED PYRIMIDINE COMPOUND AND PRODUCTION METHOD THEREFOR
申请人:Unimatec Co., Ltd.
公开号:EP3892617A1
公开(公告)日:2021-10-13
Provided is a new fluorine-containing pyrimidine compound having substituents at the 4- and 6-position and having a pyridine ring structure or diazine structure at the 2-position and a manufacturing method capable of simply manufacturing the fluorine-containing pyrimidine compound.
A fluorine-containing pyrimidine compound represented by general formula (1), (2), (3), (4), (5), or (6) below.
wherein, in the general formulae (1) to (6) above,
R represents a hydrocarbon group having 1 to 12 carbon atoms; and
X and Y each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, -CnF2n+1 (n is an integer of 1 to 10), a nitro group, a boronate group, -OA1, -SOmA1 (m is an integer of 0 to 3), -NA1A2, -COOA1, or -CONA1A2, and A1 and A2 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms.