Exploration of the Active Site of Neuronal Nitric Oxide Synthase by the Design and Synthesis of Pyrrolidinomethyl 2-Aminopyridine Derivatives
摘要:
Neuronal nitric oxide synthase (nNOS) represents an important therapeutic target for the prevention of brain injury and the treatment of various neurodegenerative disorders. A series of trans-substituted amino pyrrolidinomethyl 2-aminopyridine derivatives (8-34) was designed and synthesized. A structure activity relationship analysis led to the discovery of low nanomolar nNOS inhibitors ((+/-)-32 and (+/-)-34) with more than 1000-fold selectivity for nNOS over eNOS. Four enantiomerically pure isomers of 3'-[2 ''-(3 ''-fluorophenethylamino)ethoxy]pyrrolidin-4'-yl}methyl}-4-methylpyridin-2-amine (4) also were synthesized. It was found that (3'R,4'R)-4 can induce enzyme elasticity to generate a new "hot spot" for ligand binding. The inhibitor adopts a unique binding mode, the same as that observed for (3'R,4'R)-3'-[2 ''-(3'''-fluorophenethylamino)ethylamino]pyrrolidin-4'-yl}methyl}-4-methylpyridin-2-amine ((3'R,4'R)-3) (J. Am. Chem. Soc. 2010, 132 (15), 5437-5442). On the basis of structure-activity relationships of 8-34 and different binding conformations of the cis and trans isomers of 3 and 4, critical structural requirements of the NOS active site for ligand binding are revealed.
Exploration of the Active Site of Neuronal Nitric Oxide Synthase by the Design and Synthesis of Pyrrolidinomethyl 2-Aminopyridine Derivatives
摘要:
Neuronal nitric oxide synthase (nNOS) represents an important therapeutic target for the prevention of brain injury and the treatment of various neurodegenerative disorders. A series of trans-substituted amino pyrrolidinomethyl 2-aminopyridine derivatives (8-34) was designed and synthesized. A structure activity relationship analysis led to the discovery of low nanomolar nNOS inhibitors ((+/-)-32 and (+/-)-34) with more than 1000-fold selectivity for nNOS over eNOS. Four enantiomerically pure isomers of 3'-[2 ''-(3 ''-fluorophenethylamino)ethoxy]pyrrolidin-4'-yl}methyl}-4-methylpyridin-2-amine (4) also were synthesized. It was found that (3'R,4'R)-4 can induce enzyme elasticity to generate a new "hot spot" for ligand binding. The inhibitor adopts a unique binding mode, the same as that observed for (3'R,4'R)-3'-[2 ''-(3'''-fluorophenethylamino)ethylamino]pyrrolidin-4'-yl}methyl}-4-methylpyridin-2-amine ((3'R,4'R)-3) (J. Am. Chem. Soc. 2010, 132 (15), 5437-5442). On the basis of structure-activity relationships of 8-34 and different binding conformations of the cis and trans isomers of 3 and 4, critical structural requirements of the NOS active site for ligand binding are revealed.
Potent and highly selective heteroaromatic inhibitors of neuronal nitric oxide synthase
申请人:Silverman B. Richard
公开号:US20080108814A1
公开(公告)日:2008-05-08
Peptidomimetic compounds as can inhibit neuronal nitric oxide synthase (nNOS) for potential treatment in neurodegenerative diseases, such as but not limited to stroke, Alzheimer's disease, Parkinson's disease, Huntington's disease.
[EN] POTENT AND HIGHLY SELECTIVE HETEROAROMATIC INHIBITORS OF NEURONAL NITRIC OXIDE SYNTHASE<br/>[FR] INHIBITEURS HÉTÉROAROMATIQUES PUISSANTS ET HAUTEMENT SÉLECTIFS DE LA MONOXYDE D'AZOTE SYNTHASE NEURONALE
申请人:UNIV NORTHWESTERN
公开号:WO2008042353A1
公开(公告)日:2008-04-10
[EN] Peptidomimetic compounds as can inhibit neuronal nitric oxide synthase (nNOS) for potential treatment in neurodegenerative diseases, such as but not limited to stroke, Alzheimer's disease, Parkinson's disease, Huntington's disease. [FR] L'invention concerne des composés peptidomimétiques capables d'inhiber la monoxyde d'azote synthase neuronale (nNOS) dans le traitement potentiel de maladies neurodégénératives, telles que, mais sans en exclure d'autres, l'accident vasculaire cérébral, la maladie d'Alzheimer, la maladie de Parkinson et la maladie de Huntington.