A Chimeric Ligand Approach Leading to Potent Antiprion Active Acridine Derivatives: Design, Synthesis, and Biological Investigations
摘要:
Human transmissible neurodegenerations including Creutzfeldt-Jakob disease are unique, since they are caused by prions, an infectious agent that replicates without nucleic acids but instead by inducing conversion of a host-resident normal prion protein to a misfolded conformational isoform. For pharmacotherapy of these unusual diseases, tricyclic heterocyclic compounds such as quinacrine have been considered, but with ambiguous success in vivo, so far. On the basis of the synergistic antiprion effects of quinacrine and iminodibenzyl derivatives, we introduce a novel class of potential pharmaceuticals representing structural chimeras of quinacrine and imipramine analogues. We describe the chemical synthesis and bioassays of a focused library of these compounds. The most potent target compound 2a revealed an EC50 value of 20 nM determined with a cell model of prion disease, thus substantially improving the antiprion efficacy of quinacrine.
A Chimeric Ligand Approach Leading to Potent Antiprion Active Acridine Derivatives: Design, Synthesis, and Biological Investigations
摘要:
Human transmissible neurodegenerations including Creutzfeldt-Jakob disease are unique, since they are caused by prions, an infectious agent that replicates without nucleic acids but instead by inducing conversion of a host-resident normal prion protein to a misfolded conformational isoform. For pharmacotherapy of these unusual diseases, tricyclic heterocyclic compounds such as quinacrine have been considered, but with ambiguous success in vivo, so far. On the basis of the synergistic antiprion effects of quinacrine and iminodibenzyl derivatives, we introduce a novel class of potential pharmaceuticals representing structural chimeras of quinacrine and imipramine analogues. We describe the chemical synthesis and bioassays of a focused library of these compounds. The most potent target compound 2a revealed an EC50 value of 20 nM determined with a cell model of prion disease, thus substantially improving the antiprion efficacy of quinacrine.
[EN] TRICYCLIC PYRAZOLE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASES A BASE DE TYRAZOLES TRICYCLIQUES
申请人:ABBOTT LAB
公开号:WO2005095387A1
公开(公告)日:2005-10-13
Compounds of the present invention are useful for inhibiting protein tyrosine kinases. Also disclosed are methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.
SUBSTITUTED PYRIDINYL-PYRIMIDINES AND THEIR USE AS MEDICAMENTS
申请人:Dahmann Georg
公开号:US20130023502A1
公开(公告)日:2013-01-24
The invention relates to new substituted pyridinyl-pyrimidines of formula
1
wherein
ring A is a five-membered saturated or unsaturated carbocyclic ring which optionally comprises one, two or three heteroatoms each independently from each other selected from the group N, S and O,
wherein R
1
, R
2
, R
4
, R
3
, R
5
and R
6
are defined as in claim
1
and wherein ring A is further optionally substituted by one or two further substituents and the pharmaceutically acceptable salts, diastereomers, enantiomers, racemates, hydrates and solvates of the aforementioned compounds.
[EN] SUBSTITUTED PYRIDINYL-PYRIMIDINES AND THEIR USE AS MEDICAMENTS<br/>[FR] PYRIDINYL-PYRIMIDINES SUBSTITUÉES ET LEUR UTILISATION EN TANT QUE MÉDICAMENTS
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012101013A1
公开(公告)日:2012-08-02
The invention relates to new substituted pyridinyl-pyrimidines of formula 1 wherein ring A is a five-membered saturated or unsaturated carbocyclic ring which optionally comprises one, two or three heteroatoms each independently from each other selected from the group N, S and O, wherein R1, R2, R4, R3, R5 and R6 are defined as in claim 1 and wherein ring A is further optionally substituted by one or two further substituents and the pharmaceutically acceptable salts, diastereomers, enantiomers, racemates, hydrates and solvates of the aforementioned compounds.
There is provided a compound of formula I
and the pharmaceutically acceptable salts and esters thereof
wherein X
1
, X
2
, R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are herein described.
The compounds exhibit activity as anticancer agents.
Role of disulfide linkage in action of bis(dialkylaminethiocarbonyl)disulfides as potent double-Edged microbicidal spermicide: Design, synthesis and biology
作者:Nand Lal、Santosh Jangir、Veenu Bala、Dhanaraju Mandalapu、Amit Sarswat、Lalit Kumar、Ashish Jain、Lokesh Kumar、Bhavana Kushwaha、Atindra K. Pandey、Shagun Krishna、Tara Rawat、Praveen K. Shukla、Jagdamba P. Maikhuri、Mohammad I. Siddiqi、Gopal Gupta、Vishnu L. Sharma
DOI:10.1016/j.ejmech.2016.03.012
日期:2016.6
generally treated by Metronidazole and Fluconazole respectively. Poor vaginal efficacy, drug-resistance and non-spermicidal nature limit their use as topical microbicidal contraceptives. Bis(dialkylaminethiocarbonyl)disulfides (4–38) were designed as dually active, non-surfactant molecules capable of eliminating Trichomonas vaginalis and Candida strains as well as irreversibly immobilizing 100% human sperm