Evaluation of Aminohydantoins as a Novel Class of Antimalarial Agents
摘要:
Given the threat of drug resistance, there is an acute need for new classes of antimalarial agents that act via a unique mechanism of action relative to currently used drugs. We have identified a set of druglike compounds within the Tres Cantos Anti-Malarial Set (TCAMS) which likely act via inhibition of a Plasmodium aspartic protease. Structure-activity relationship analysis and optimization of these aminohydantoins demonstrate that these compounds are potent nanomolar inhibitors of the Plasmodium aspartic proteases PM-II and PM-IV and likely one or more other Plasmodium aspartic proteases. Incorporation of a bulky group, such as a cyclohexyl group, on the aminohydantion N-3 position gives enhanced antimalarial potency while reducing inhibition of human aspartic proteases such as BACE. We have identified compound 8p (CWHM-117) as a promising lead for optimization as an antimalarial drug with a low molecular weight, modest lipophilicity, oral bioavailability, and in vivo antimalarial activity in mice.
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:Albert Jeffrey
公开号:US20090176850A1
公开(公告)日:2009-07-09
This invention relates to novel compounds having the structural formula I below and to their pharmaceutically acceptable salts, compositions and methods of use. These novel compounds provide a treatment or prophylaxis of cognitive impairment, Alzheimer Disease, neurodegeneration and dementia.
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:EP1954682A1
公开(公告)日:2008-08-13
[EN] 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<br/>[FR] NOUVEAUX COMPOSES 2-AMINO-IMIDAZOLE-4-ONE ET LEUR UTILISATION DANS LA FABRICATION D'UN MEDICAMENT DESTINE A ETRE UTILISE DANS LE TRAITEMENT D'UNE DEFICIENCE COGNITIVE, LA MALADIE D'ALZHEIMER, LE NEURODEGENERESCENCE ET LA DEMENCE
申请人:ASTRAZENECA AB
公开号:WO2007058601A1
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 salts, compositions and methods of use. These novel compounds provide a treatment or prophylaxis of cognitive impairment, Alzheimer Disease, neurodegeneration and dementia. [FR] L'invention concerne de nouveaux composés présentant de formule structurelle (I) et leurs sels pharmaceutiquement acceptables, leurs compositions et leurs procédés d'utilisation. Les nouveaux composés de l'invention sont utilisés dans le traitement ou la prophylaxie d'une déficience cognitive, de la maladie d'Alzheimer, de la neurodégénerescence et de la démence.