The present invention relates to compounds of formula
1
wherein A is an unsubstituted or substituted cyclic group; and
R is hydrogen or lower alkyl;
or a pharmaceutically acceptable acid addition salt thereof.
These compounds are NMDA NR-2B receptor subtype specific blockers and are useful in the treatment of neurodegeneration, depression and pain.
Alkylboronic Esters from Copper-Catalyzed Borylation of Primary and Secondary Alkyl Halides and Pseudohalides
作者:Chu-Ting Yang、Zhen-Qi Zhang、Hazmi Tajuddin、Chen-Cheng Wu、Jun Liang、Jing-Hui Liu、Yao Fu、Maria Czyzewska、Patrick G. Steel、Todd B. Marder、Lei Liu
DOI:10.1002/anie.201106299
日期:2012.1.9
unprecedented copper‐catalyzed cross‐coupling reaction of the title compounds with diboron reagents is described (see scheme; Ts=4‐toluenesulfonyl). This reaction can be used to prepare both primary and secondaryalkylboronic esters having diverse structures and functional groups. The resulting products would be difficult to access by other means.
Enantioselective Synthesis of Axially Chiral Biaryls by Diels–Alder/Retro-Diels–Alder Reaction of 2-Pyrones with Alkynes
作者:Meng-Meng Xu、Xin-Yu You、Yu-Zhen Zhang、Yang Lu、Kui Tan、Limin Yang、Quan Cai
DOI:10.1021/jacs.1c04759
日期:2021.6.23
The enantioselective synthesis of axiallychiralbiaryls by a copper-catalyzed Diels–Alder/retro-Diels–Alder reaction of 2-pyrones with alkynes is reported herein. Using electron-deficient 2-pyrones and electron-rich 1-naphthyl acetylenes as the reaction partners, a broad range of axiallychiralbiaryl esters are obtained in excellent yields (up to 97% yield) and enantioselectivities (up to >99% ee)
Indole derivatives for the treatment of depression and anxiety
申请人:——
公开号:US20040006229A1
公开(公告)日:2004-01-08
The present invention provides compounds of formula (I): which are useful for treating depression, anxiety, and alleviating the symptoms caused by withdrawal or partial withdrawal from the use of tobacco or of nicotine.
1
The present invention provides compounds of formula (I) which are useful for treating depression, anxiety, and alleviating the symptoms caused by withdrawal or partial withdrawal from the use of tobacco or of nicotine.
1