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.
Synthesis of novel pyrazole-based heterocycles via a copper(ii)-catalysed domino annulation
作者:Márió Gyuris、László G. Puskás、Gábor K. Tóth、Iván Kanizsai
DOI:10.1039/c3ob41146j
日期:——
Pyrazole-based β-aminonitriles and β-amino-carbaldehydes as bifunctional building blocks are introduced in a facile copper(II)-catalysed one-pot domino generation of multiple N-containing heterobi- and tricycles. This streamlined synthetic approach permits easy access to novel pyrazole-fused imidazo- and pyrimido[1,2-c]pyrimidinones and to pyrazolo[3,4-d]pyrimidinone species with isolated yields up to 90%. The present study also reveals a unique amine–isocyanate coupling promotion via copper(II)-based catalytic activation.
[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))
Described are 6-arylmethylpyrazolo[3,4-d]pyrimidines of the following formula:
processes for their preparation and their use for producing medicaments for improving perception, concentration, learning and/or memory.
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.