Facile Rearrangements of Alkynylamino Heterocycles with Noble Metal Cations
摘要:
A number of 2-(alkynylamino)-substituted heterocycles have been synthesized. These heterocycles rearrange in the presence of silver(I) and gold(I) salts to give novel 2H-pyrimido[2,1-b]benzoxazoles, 2H-pyrimido[2,1-b]benzothiazoles, and a 2H-pyrimido[2,1-b]benzoselenazole. Two of the the 2H-pyrimido[2,1-b]benzoxazoles were isolated in good yield. The kinetics of the silver tetrafluoroborate-catalyzed rearrangements of selected (alkynylamino)benzoxazoles and benzothiazoles have been examined by H-1 NMR in CD3CN. Factors affecting the electron densities of the triple bond and of the nitrogen atom in the heterocycle are important in influencing the rate of rearrangement.
[EN] BICYCLIC HYDROXAMIC ACIDS USEFUL AS INHIBITORS OF MAMMALIAN HISTONE DEACETYLASE ACTIVITY<br/>[FR] ACIDES HYDROXAMIQUES BICYCLIQUES UTILES COMME INHIBITEURS DE L'ACTIVITÉ HISTONE DÉSACÉTYLASE CHEZ LE MAMMIFÈRE
申请人:KANCERA AB
公开号:WO2017108282A1
公开(公告)日:2017-06-29
A compound of formula (Ia) or (Ib) or a pharmaceutically acceptable salt thereof. The compound is an inhibitor of a histone deacetylase, and as such is useful in terepy, e.g. in the treatment of autoimmune disorders, mental disorders, neurodegenerative disorders, and hyperproliferative disorders.
[EN] TLR2 MODULATOR COMPOUNDS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF<br/>[FR] COMPOSÉS MODULATEURS DE TLR2, COMPOSITIONS PHARMACEUTIQUES ET LEURS UTILISATIONS
申请人:AXIAL THERAPEUTICS INC
公开号:WO2021242923A1
公开(公告)日:2021-12-02
The present disclosure relates to compounds which modulate the activity of Toll-like receptor (TLR) proteins, including agonists or activators, partial agonists, and antagonists. Of particular interest of compounds that modulate the activity of TLR2, as well as methods of using such compounds to treat cancer and other disorders associated with a TLR2 pathway.
Photographic sensitivity increasing alkynylamine compounds and photographic elements
申请人:EASTMAN KODAK COMPANY
公开号:EP0665461A1
公开(公告)日:1995-08-02
The present invention relates to water soluble photographic sensitivity increasing alkynylamine compounds. It also relates to photographic elements containing such compounds.
Photographic sensitivity increasing alkynylamine compounds and
申请人:Eastman Kodak Company
公开号:US05413905A1
公开(公告)日:1995-05-09
The present invention relates to water soluble photographic sensitivity increasing alkynylamine compounds. It also relates to photographic elements containing such compounds.
Benzooxazole, oxazolopyridine, benzothiazole and thiazolopyridine derivatives
申请人:Binggeli Alfred
公开号:US20070093521A1
公开(公告)日:2007-04-26
This invention is concerned with compounds of the formula
wherein X, A, B, R
1
, R
2
and G are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.