A compound of Formula (I), or pharmaceutically acceptable salts and/or hydrates or prodrugs thereof, wherein Formula (I) has the structure:
is provided, wherein R
1
-R
7
are defined herein. These compounds are useful in medicaments for treating a disease selected from the group consisting of Alzheimer's Disease, amyloid angiopathy, cerebral amyloid angiopathy, systemic amyloidosis, hereditary cerebral hemorrhage with amyloidosis of the Dutch type, inclusion body myositis, mild cognitive impairment (MCI) and Down's syndrome, in a subject.
A process for the preparation of compounds of formula (I): wherein the general symbols are as defined in claim 1, which comprises reacting a compound of formula (V): wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
and R
18
are as defined in claim 1, and R
18
is especially nitro, chlorine or bromine, with an azide compound of formula (IX): wherein M and n are as defined in claim 1, especially with sodium azide.
The influence of chlorine and sulphonate substituents on the visible absorption maxima of some azo dyes
作者:David Greenwood、Michael G. Hutchings、Brian Lamble
DOI:10.1039/p29860001107
日期:——
A total of 110 arylazo dyes have been prepared, based on five benzenoid and heterocyclic coupling components, and containing combinations of chlorine and sulphonate (sulpho) substituents in the diazo components. Their visibleabsorptionmaxima have been analysed in order to determine the degree to which chloro and sulpho substituentinfluences are constant and transferable, both within a series, and
Environmental protection series of reactive dyestuffs and their use
申请人:Chen Hsiao-San
公开号:US20050203286A1
公开(公告)日:2005-09-15
An environmental protection reactive dyestuff of the following formula (I) is disclosed,
wherein R
1
, R
2
, D, M are defined as in the specification. The dyestuff of the invention is distinguished by a high fixation and a very good build-up. It is distinguished also by a green environmental protection and a low salt, a low base, a high exhaustion, non-contain heavy metal and halogen atoms, and it has fiber-reactive properties and is very highly suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp, or amide containing fibers such as wool and nylon.