Structure-Based Discovery of Highly Selective Phosphodiesterase-9A Inhibitors and Implications for Inhibitor Design
摘要:
A new series of phosphodiesterase-9 (PDE9) inhibitors that contain a scaffold of 6-amino-pyrazolopyrimidinone have been discovered by a combination of structure-based design and computational docking. This procedure significantly saved the load of chemical synthesis and is an effective method for the discovery of inhibitors. The best compound 28 has an IC50 of 21 nM and 3.3 mu M, respectively, for PDE9 and PDE5 and about 3 orders of magnitude of selectivity against other PDE families. The crystal structure of the PDE9 catalytic domain in complex with 28 has been determined and shows a hydrogen bond between 28 and Tyr424. This hydrogen bond may account for the 860-fold selectivity of 28 against PDE1B, in comparison with about 30-fold selectivity of BAY73-6691. Thus, our studies suggest that Tyr424, a unique residue of PDE8 and PDE9, is a potential target for improvement of selectivity of PDE9 inhibitors.
The invention relates to novel 6-arylmethyl-substituted pyrazolopyrimidines, process for their preparation and their use for producing medicaments for improving perception, concentration, learning and/or memory.
6-Cyclylmethyl- and 6-alkylmethyl-substituted pyrazolepyrimidines
申请人:Hendrix Martin
公开号:US20070105876A1
公开(公告)日:2007-05-10
The invention relates to novel 6-cyclylmethyl- and 6-alkylmethyl-substituted pyrazolopyrimidines, process for their preparation and their use for producing medicaments for improving perception, concentration, learning and/or memory.
[DE] 6-ARYLMETHYL-SUBSTITUIERTE PYRAZOLOPYRIMIDINE<br/>[EN] 6-ARYLMETHYL-SUBSTITUTED PYRAZOLOPYRIMIDINES<br/>[FR] PYRAZOLOPYRIMIDINES SUBSTITUEES PAR 6-ARYLMETHYLE
申请人:BAYER HEALTHCARE AG
公开号:WO2004099210A1
公开(公告)日:2004-11-18
Die Erfindung betrifft neue 6-Arylmethyl-substituierte Pyrazolopyrimidine der Formel (I) in welcher R1 Phenyl, Pyridyl oder Thiophenyl, R2 Phenyl oder Heteroaryl, bedeuten, sowie deren Salze, Solvate und/oder Solvate der Salze, Verfahren zu ihrer Herstellung, und ihre Verwendung zur Herstellung von Arzneimitteln zur Verbesserung von Wahrnehmung, Konzentrationsleistung, Lern- und/oder Gedächtnisleistung.
[DE] 6-CYCLYLMETHYL- UND 6-ALKYLMETHYL-SUBSTITUIERTE PYRAZOLOPYRIMIDINE<br/>[EN] 6-CYCLYLMETHYL- AND 6-ALKYLMETHYL-SUBSTITUTED PYRAZOLOPYRIMIDINES<br/>[FR] PYRAZOLOPYRIMIDINES SUBSTITUEES PAR 6-CYCLYLMETHYLE ET 6-ALKYLMETHYLE
申请人:BAYER HEALTHCARE AG
公开号:WO2004099211A1
公开(公告)日:2004-11-18
Die Erfindung betrifft neue 6-Cyclylmethyl- und 6-Alkylmethyl-substituierte Pyrazolopyrimidine, Verfahren zu ihrer Herstellung, und ihre Verwendung zur Herstellung von Arzneimitteln zur Verbesserung von Wahrnehmung, Konzentrationsleistung, Lern- und/oder Gedächtnisleistung. (Formel (I))
Aryl-substituted purine analogues are provided, of the formula: (I) wherein variables are as described herein. Such compounds are ligands that may be used to modulate specific receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using such compounds to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.