Imidazole derivatives as histamine receptor H3 (ANT) agonists
申请人:Institut National de la Sante et de la Recherche Medical
公开号:US06248765B1
公开(公告)日:2001-06-19
Novel imidazole derivatives as histamine receptor H3 antagonists and/or agonists, preparation thereof and therapeutical uses thereof. Chemical compounds for use as histamine receptor H3 agonists, partial agonists or antagonists, having general formula (Ia) or (Ib), the use thereof for making drugs, and methods for revealing the agonist, partial agonist or antagonist activity of such compounds in vivo, are disclosed.
Regio- and Stereoselective Cyanotriflation of Alkynes Using Aryl(cyano)iodonium Triflates
作者:Xi Wang、Armido Studer
DOI:10.1021/jacs.6b00869
日期:2016.3.9
A novel, mild, and versatile approach for regioselective syn-addition of both the CN and OTf groups of aryl(cyano)iodonium triflates to alkynes is described. The reaction uses Fe-catalysis and can be conducted in gram scale. Products of the vicinal cyanotriflation can be stereospecifically readily further functionalized, rendering the method highly valuable.
Regio- and Stereoselective Radical Perfluoroalkyltriflation of Alkynes Using Phenyl(perfluoroalkyl)iodonium Triflates
作者:Xi Wang、Armido Studer
DOI:10.1021/acs.orglett.7b01215
日期:2017.6.2
A method for regio- and stereoselective anti-addition of the perfluoroalkyl and the triflate group of phenyl(perfluoroalkyl)iodonium triflates to alkynes is presented. The radical reaction uses cheap CuCl as a smart initiator and can be conducted in gram scale. The perfluoroalkyltriflated products are readily further functionalized, rendering this transformation valuable.
Modified silicone compound, process of producing the same, and cured object obtained therefrom
申请人:——
公开号:US20030065117A1
公开(公告)日:2003-04-03
It is here intended to provide a modified silicone compound having excellent heat-resistant properties and a process of producing the same, and there is disclosed a modified silicone compound having an Si—H bond and an unsaturated bond, represented by the general formula (1):
1
(wherein R
1
and R
4
are each hydrogen or a monovalent organic group; R
2
is a divalent organic group; R
4
and R
6
are each a monovalent organic group and may be the same or different; R
3
is a divalent group having an unsaturated carbon-carbon bond, represented by —C≡C— or —C(R
7
)═C(R
8
)—; and R
7
and R
8
are the same as defined in R
1
).
本文旨在提供一种具有优异耐热性能的改性有机硅化合物及其生产工艺,并公开了一种具有 Si-H 键和不饱和键的改性有机硅化合物,由通式(1)表示:
1
(其中 R
1
和 R
4
均为氢或一价有机基团;R
2
是二价有机基团
4
和 R
6
均为一价有机基团,可以相同或不同;R
3
是具有不饱和碳-碳键的二价基团,由-C≡C-或-C(R
7
)═C(R
8
)-;以及 R
7
和 R
8
与 R
1
).