Structure-Based Approach to the Development of Potent and Selective Inhibitors of Dihydrofolate Reductase from Cryptosporidium
摘要:
Cryptosporidiosis is an emerging infectious disease that can be life-threatening in ail immune-compromised individual and causes gastrointestinal distress lasting up to 2 weeks in an immune-competent individual. There are few therapeutics available for effectively treating this disease. We have been exploring dihydrofolate reductase (DHFR) as a potential target in Cryptosporidium. On the basis of the structure of the DHFR enzyme from C. hominis, we have developed a novel scaffold that led to the discovery of potent (38 nM) and efficient inhibitors of this enzyme. Recently, we have advanced these inhibitors to the next stage of development. Using the Structures of both the protozoal and human enzymes. we have developed inhibitors with nanomolar potency (1.1 nM) against the pathogenic enzyme and high levels (1273-fold) of selectivity over the human enzyme.
NOVEL 2-AMINO-IMIDAZOLE-4-ONE COMPOUNDS AND THEIR USE IN THE MANUFACTURE OF A MEDICAMENT TO BE USED IN THE TREATMENT OF COGNITIVE IMPAIRMENT, ALZHEIMER'S DISEASE, NEURODEGENERATION AND DEMENTIA
申请人:Astra Zeneca AB
公开号:EP1979324A2
公开(公告)日:2008-10-15
[EN] NEW COMPOUNDS<br/>[FR] NOUVEAUX COMPOSES
申请人:ASTRAZENECA AB
公开号:WO2007058602A2
公开(公告)日:2007-05-24
[EN] This invention relates to novel compounds having the structural formula I below: and to their pharmaceutically acceptable salt, compositions and methods of use. These novel compounds provide a treatment or prophylaxis of cognitive impairment, Alzheimer Disease, neurodegeneration and dementia. [FR] La présente invention concerne de nouveaux composés ayant la formule structurale I ci-dessous : et leurs sels pharmaceutiquement acceptables, des compositions et des procédés d'utilisation. Ces nouveaux composés permettent un traitement ou une prophylaxie de troubles cognitifs, de la maladie d'Alzheimer, de la neurodégénérescence et de la démence.