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.
Heteroaromatic Selective Inhibitors of Neuronal Nitric Oxide Synthase
申请人:Silverman Richard B.
公开号:US20090104677A1
公开(公告)日:2009-04-23
Compounds inhibiting neuronal nitric oxide synthase (nNOS) for potential treatment in neurodegenerative diseases, such as stroke, Alzheimer's disease, Parkinson's disease, Huntington's disease, such compounds of a formula.
Exploration of the Active Site of Neuronal Nitric Oxide Synthase by the Design and Synthesis of Pyrrolidinomethyl 2-Aminopyridine Derivatives
作者:Haitao Ji、Silvia L. Delker、Huiying Li、Pavel Martásek、Linda J. Roman、Thomas L. Poulos、Richard B. Silverman
DOI:10.1021/jm100947x
日期:2010.11.11
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.