The reaction of hydroxylamine with aryl trifluoromethyl-β-diketones: Synthesis of 5-hydroxy-5-trifluoromethyl-Δ2-isoxazolines and their dehydration to 5-trifluoromethylisoxazoles
作者:Vinod Kumar、Ranjana Aggarwal、Shiv P. Singh
DOI:10.1016/j.jfluchem.2006.03.009
日期:2006.7
Reaction of hydroxylamine hydrochloride with aryl trifluoromethyl-β-diketones affords 5-hydroxy-5-trifluoromethyl-Δ2-isoxazolines rather than the reported 3-trifluoromethylisoxazoles. The structural assignment is based on the analysis of their NMR (1H, 13C and 19F) spectral data and of their dehydration products, 5-trifluoromethylisoxazoles.
The present invention is concerned with isoxazole-pyridine derivatives of formula I
wherein X, R
1
to R
6
are as described herein. The compounds are active on the GABA A α5 receptor binding site and useful for the treatment of cognitive disorders, such as Alzheimer's disease.
本发明涉及式I的异恶唑-吡啶衍生物
其中X,R1至R6如本文所述。这些化合物对GABA A α5受体结合位点具有活性,并可用于治疗认知障碍,如阿尔茨海默病。
ISOXAZOLE-IMIDAZOLE DERIVATIVES
申请人:Buettelmann Bernd
公开号:US20090005370A1
公开(公告)日:2009-01-01
The present invention is concerned isoxazole-imidazole derivatives having affinity and selectivity for GABA A α5 receptor binding site, their manufacture, pharmaceutical compositions containing them and their use for enhancing cognition or for the treatment of cognitive disorders like Alzheimer's disease. In particular, the present invention is concerned with aryl-isoxazol-4-yl-imidazole derivatives of formula I
wherein R
1
, R
2
and R
3
are as described in the specification.
本发明涉及对GABA A α5受体结合位点具有亲和力和选择性的异噁唑-咪唑衍生物,其制备方法,含有它们的药物组合物以及它们用于增强认知或治疗阿尔茨海默病等认知障碍的用途。具体而言,本发明涉及式I的芳基异噁唑-4-基咪唑衍生物,其中R1、R2和R3如规范中所述。
ISOXAZOLO-PYRIDINE DERIVATIVES
申请人:HOFFMANN-LA ROCHE INC.
公开号:US20130274468A1
公开(公告)日:2013-10-17
The present invention is concerned with isoxazole-pyridine derivatives of formula I
wherein X, R
1
to R
6
are as described herein. The compounds are active on the GABA A α5 receptor binding site and useful for the treatment of cognitive disorders, such as Alzheimer's disease.
本发明涉及公式I中的异恶唑-吡啶衍生物,其中X,R1至R6如此描述。这些化合物在GABA A α5受体结合位点上活性,并且用于治疗认知障碍,例如阿尔茨海默病。
SUBSTITUTED ISOXAZOLINES, PHARMACEUTICAL COMPOSITIONS CONTAINING SAME, METHODS OF PREPARING SAME, AND USES OF SAME
申请人:Brittain E.A. Dominic
公开号:US20080027059A1
公开(公告)日:2008-01-31
The invention relates to substituted isoxazolines according to the general formula (I):
in which A, R1, R2, R3, R4, Z, X, m, n, and p, are given in the claims, and salts thereof, to pharmaceutical compositions comprising said substituted isoxazolines, to methods of preparing said substituted isoxazolines as well as the use thereof for manufacturing a pharmaceutical composition for the treatment of diseases known to be at least in part mediated by HDAC activity or whose symptoms are known to be alleviated by HDAC inhibitors.