An amination of 4-oxoproline derivatives with glycine methyl or benzyl ester and sodium cyanoborohydride led to the mixtures of corresponding diastereomeric 4-cis- and 4-trans-glycinoproline derivatives. We found that the ratio of diastereomers mainly depends on the structure of 4-oxoproline ester groups and, to a lesser extent, on the structure of N-acyl substituents. The best results were achieved with tert-butyl ester group; it ensured good yields of the amination products and the greatest prevalence of 4-cis-isomers. The structure of ester group in glycine molecule only scarcely affected the resulting ratio of N-(N-benzvloxycarbonylglycyl)-4-glycinoprolines.
Embodiments of this invention include novel analogs of Glycyl-Prolyl-Glutamate (GPE) and compositions containing such analogs of GPE. Of these, certain analogs have modified proline residues. Other embodiments of this invention include uses of analogs of GPE to protect neural cells from degeneration and/or death in response to injury or disease. Disorders treatable with compounds and compositions of this invention include hypoxia/ischemia, toxic injury, and chronic neurodegenerative disorders including Parkinson's disease.
Embodiments of this invention include novel analogs of Glycyl-Prolyl-Glutamate (GPE) and compositions containing such analogs of GPE. Of these, certain analogs have modified proline residues. Other embodiments of this invention include uses of analogs of GPE to protect neural cells from degeneration and/or death in response to injury or disease. Disorders treatable with compounds and compositions of this invention include hypoxia/ischemia, toxic injury, and chronic neurodegenerative disorders including Parkinson's disease.
[EN] ANALOGS OF GLYCYL-PROLYL-GLUTAMATE<br/>[FR] ANALOGUES DE GLYCYL-PROLYL-GLUTAMATE
申请人:NEUREN PHARMACEUTICALS LTD
公开号:WO2006127702A2
公开(公告)日:2006-11-30
[EN] Embodiments of this invention include novel analogs of Glycyl-Prolyl-Glutamate (GPE) and compositions containing such analogs of GPE. Of these, certain analogs have modified proline residues. Other embodiments of this invention include uses of analogs of GPE to protect neural cells from degeneration and/or death in response to injury or disease. Disorders treatable with compounds and compositions of this invention include hypoxia/ischemia, toxic injury, and chronic neurodegenerative disorders including Parkinson's disease. [FR] Certains modes de réalisation de l'invention concernent de nouveaux analogues de Glycyl-Prolyl-Glutamate (GPE) ainsi que des compositions contenant ces analogues de GPE. Certains analogues contiennent des résidus proline modifiés. D'autres modes de réalisation de l'invention impliquent l'utilisation des analogues de GPE dans la protection des cellules neuronales de la dégénérescence et/ou la mort dues à des lésions ou des maladies. Les troubles pouvant être traités à l'aide des composés et compositions de l'invention incluent l'hypoxie/ischémie, la lésion toxique et les troubles neurodégénératives chroniques tels que la maladie de Parkinson.