Design, Synthesis, and Biological Evaluation of Dual Binding Site Acetylcholinesterase Inhibitors: New Disease-Modifying Agents for Alzheimer's Disease
摘要:
New dual binding site acetylcholinesterase (AChE) inhibitors have been designed and synthesized as new potent drugs that may simultaneously alleviate cognitive deficits and behave as disease-modifying agents by inhibiting the P-amyloid (M) peptide aggregation through binding to both catalytic and peripheral sites of the enzyme. Particularly, compounds 5 and 6 emerged as the most potent heterodimers reported so far, displaying IC50 values for AChE inhibition of 20 and 60 pM, respectively. More importantly, these dual AChE inhibitors inhibit the AChE-induced A beta peptide aggregation with IC50 values 1 order of magnitude lower than that of propidium, thus being the most potent derivatives with this activity reported up to date. We therefore conclude that these compounds are very promising disease-modifying agents for the treatment of Alzheimer's disease (AD).
[EN] TACRINE DERIVATIVES AS INHIBITORS OF ACETYLCHOLINESTERASE<br/>[FR] DERIVES DE TACRINE UTILISES EN TANT QU'INHIBITEURS DE L'ACETYLCHOLINESTERASE
申请人:NEUROPHARMA SA
公开号:WO2005005413A1
公开(公告)日:2005-01-20
The invention provides compounds of formula: (I) which have a tacrine moiety connected to an heterocyclic moiety through a linker. Through careful selection of the substituents and the linker, the activity and selectivity towards acetylcholinesterase can be modulated. The compounds show potent AChE inhibition activities together with modifications in the beta-amyloid aggregation properties by binding simultaneously to the catalytic and peripheral AChE sites. They are useful in the treatment of AChE mediated diseases, such as the Alzheimer's disease.
The invention provides compounds of formula:
which have a tacrine moiety connected to an heterocyclic moiety through a linker. Through careful selection of the substituents and the linker, the activity and selectivity towards acetylcholinesterase can be modulated. The compounds show potent AChE inhibition activities together with modifications in the β-amyloid aggregation properties by binding simultaneously to the catalytic and peripheral AChE sites. They are useful in the treatment of AChE mediated diseases, such as the Alzheimer's disease.
The invention provides compounds of formula:
which have a tacrine moiety connected to an heterocyclic moiety through a linker. Through careful selection of the substituents and the linker, the activity and selectivity towards acetylcholinesterase can be modulated. The compounds show potent AChE inhibition activities together with modifications in the β-amyloid aggregation properties by binding simultaneously to the catalytic and peripheral AChE sites. They are useful in the treatment of AChE mediated diseases, such as the Alzheimer's disease.