Insight into 2-phenylpyrazolo[1,5-a]pyrimidin-3-yl acetamides as peripheral benzodiazepine receptor ligands: Synthesis, biological evaluation and 3D-QSAR investigation
摘要:
The present paper reports the synthesis and binding studies of new 2-phenylpyrazolo[1,5-alpha]pyrimidin-3-yl acetamides as selective Peripheral Benzodiazepine Receptor (PBR) ligands. The variability of substituents at the 3-position was investigated and a 3D-QSAR model was proposed to evaluate the effect of different substitutions on the acetamide moiety. In addition, a subset of the novel compounds showing high affinity for PBR was tested for their ability to modulate the steroid biosynthesis in C6 glioma cells. (c) 2005 Elsevier Ltd. All rights reserved.
(EN) This invention provides novel pyrazole-4-acetic acid derivatives corresponding to formula (I) where Y is hydrogen or halogen, C1-C4 alkyl or C1-C4 alkoxy substituent; Z is a hydroxy, C1-C4 alkoxy or -NRR substituent; and R is hydrogen or a C1-C4 alkyl substituent; and pharmaceutically acceptable salts thereof, which have utility as therapeutic agents which exhibit anxiolytic, anticonvulsant and muscle relaxant effects in warm blooded animals.(FR) Nouveaux dérivés d'acide pyrazole-4-acétique correspondant à la formule (I) dans laquelle Y représente hydrogène ou un substituant halogène, alkyle C1-C4 ou alcoxy C1-C4; Z représente un substituant hydroxy, alcoxy C1-C4 ou -NRR; et R représente hydrogène ou un substituant alkyle C1-C4; et leurs sels pharmaceutiquement acceptables. Il présente une utilité comme agent thérapeutique caractérisé par des effets anxiolytiques, anticonvulsivants et relaxants musculaires chez les animaux à sang chaud.
This invention provides novel pyrazole-4-acetic acid derivatives which have utility as therapeutic agents which exhibit anxiolytic, anticonvulsant and muscle relaxant effects in warm blooded animals. Illustrative of an invention compound is 3-(dimethylamino)-5-(4-methylphenyl)-1H-pyrazole-4-acetamide: ##STR1##
Insight into 2-phenylpyrazolo[1,5-a]pyrimidin-3-yl acetamides as peripheral benzodiazepine receptor ligands: Synthesis, biological evaluation and 3D-QSAR investigation
The present paper reports the synthesis and binding studies of new 2-phenylpyrazolo[1,5-alpha]pyrimidin-3-yl acetamides as selective Peripheral Benzodiazepine Receptor (PBR) ligands. The variability of substituents at the 3-position was investigated and a 3D-QSAR model was proposed to evaluate the effect of different substitutions on the acetamide moiety. In addition, a subset of the novel compounds showing high affinity for PBR was tested for their ability to modulate the steroid biosynthesis in C6 glioma cells. (c) 2005 Elsevier Ltd. All rights reserved.