A reverse method for diversity introduction of benzimidazole to synthesize H+/K+-ATP enzyme inhibitors
摘要:
A series of 2-[(2-pyridylmethyl)sulfinyl]benzimidazole derivatives were synthesized via a solution phase synthetic route using a reversal method of diversity introduction. Using this synthetic strategy, we obtained two key intermediates (4-A and 4-B) simultaneously, which allows us to introduce diversity points onto the benzimidazole part of the final product under reliable reaction conditions to identify potent H+/K+-ATP enzyme inhibitors. Compound 141 (IC50 = 1.6 x 10 (5) M) was comparable with H+/K+-ATP enzyme inhibitor in vitro. (C) 2011 Elsevier Ltd. All rights reserved.
The present invention is directed to oxazolobenzimidazole derivatives which are potentiators of metabotropic glutamate receptors, particularly the mGluR2 receptor, and which are useful in the treatment or prevention of neurological and psychiatric disorders associated with glutamate dysfunction and diseases in which metabotropic glutamate receptors are involved. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which metabotropic glutamate receptors are involved.
Nitro-p-phenylendiaminderivative, Verfahren zu ihrer Herstellung sowie Haarfärbemittel mit einem Gehalt an diesen Verbindungen
申请人:Wella Aktiengesellschaft
公开号:EP0203446A1
公开(公告)日:1986-12-03
Nitro-p-phenylendiaminderivate der allgemeinen Formel
worin die Gruppe R20 sich in p-Stellung zur Nitrogruppe befindet und der Rest R1 einen Alkyl-, Mono- oder Polyhydroxyalkyl-, Aminoalkyl- oder Mono- oder Dialkylaminoalkylrest bedeutet und der Rest R2 unabhängig von R1 einen Alkyl- oder Mono- oder Dihydroxyalkylrest darstellt und ein Verfahren zu deren Herstellung. Die Anmeldung betrifft ferner Mittel zur Färbung von Haaren mit einem Gehalt an Nitro-p-phenylendiaminderivaten der allgemeinen Formel I. Die Verbindungen der Formel I stellen direkt auf das Haar aufziehende, mit einem sehr reinen und leuchtenden Rotton färbende Haarfarbstoffe dar. Sie zeigen eine gute Farbechtheit und können sowohl in Haarfärbemitteln ohne Oxidationsmittelzugabe als auch in Oxidationshaarfärbemitteln eingesetzt werden.
通式如下的硝基对苯二胺衍生物
其中基团 R20 相对于硝基处于 p 位,基团 R1 为烷基、单羟基或多羟基烷基、氨基烷基或单烷基或二烷基氨基烷基,基团 R2 与 R1 无关,为烷基或单羟基或二羟基烷基,以及其制备方法。本申请还涉及含有通式 I 的硝基对苯二胺衍生物的染发组合物。通式 I 的化合物是一种染发剂,可直接涂抹在头发上,使头发染上非常纯正和鲜艳的红色。它们具有良好的色牢度,既可用于不添加氧化剂的染发剂,也可用于氧化染发剂。
5-mercapto-2-nitro paraphenylenediamine compounds and hair dye compositions containing same
申请人:Bristol-Myers Squibb Company
公开号:EP0688767A1
公开(公告)日:1995-12-27
Direct dyes are disclosed, which have the structure:
wherein R, R₁, R₂ and R₃ are the same or different and are hydrogen, C₁ to C₄ alkyl or C₁ to C₄ hydroxyalkyl having from 1 to 2 hydroxy groups, with the proviso that R is not hydrogen.
HAIR DYE CONTAINING ONE OR MORE EDIBLE OR COSMETIC COLORS
申请人:CHUANG KUO SHENG
公开号:US20120141398A1
公开(公告)日:2012-06-07
This invention discloses a hair dye and a hair dyeing method using a dye mainly made of natural colors (used in food and cosmetics), synthetic colors (used in food and cosmetics), and cosmetic colors. The hair dye can be applied for dyeing hair and skin at the same time according to the keratin-like structure of the hair and skin. The hair dye can be manufactured in a form of a hair dye cream, a hair dye lotion, a frost hair dye, a hair dye gel, a hair dye ointment, a hair dye shampoo, a foam type hair dye, or a spray type hair dye. After the hair dye is combined with a perm agent, a dyeing and perming product is produced for dyeing and perming hair all at one time. The natural colors (used in food and cosmetics), synthetic colors (used in food and cosmetics) and cosmetic colors of the hair dye penetrate into the hair by different hair dyeing methods to achieve the hair dyeing effect, and permanent hair dye, semi-permanent hair dye and temporary hair dye are manufactured according to the depth that the color enters into the hair structure.