The natural alkaloid isoanabasine: synthesis from 2,3′-bipyridine, efficient resolution with BINOL, and assignment of absolute configuration by Mosher’s method
摘要:
A highly efficient and practical resolution or racemic 1-benzyiisoanabasine, which was synthesized by reduction of the benzyl salt of 2,3'-bipyridine, has been achieved through molecular complexation with (R)-BINOL or (S)-BINOL to afford pure enantiomers (100% ee). The two enantiomers of the natural alkaloid isoanabasine have been obtained by debenzylation of the corresponding enantiomeric 1-benzylisoanabasine. Using Mosher's method by NMR techniques, the absolute configuration of (-)-isoanabasine has been assigned as the (R)-configuration for the first time. Moreover, an unexpected rotamer ratio of Mosher's amide was observed. The sYn-form of two rotamers of (R)-MTPA-(R)-isoanabasine was predominant over the anti-form. (c) 2005 Elsevier Ltd. All rights reserved.
Acetamides and benzamides that are useful in treating sexual dysfunction
申请人:——
公开号:US20040029887A1
公开(公告)日:2004-02-12
The present invention relates to the use of compounds of formula (I)
1
for the treatment of sexual dysfunction and to compositions containing compounds of formula (I) for the treatment of sexual dysfunction.
本发明涉及使用式(I)的化合物治疗性功能障碍,以及含有式(I)化合物的组合物用于治疗性功能障碍。
METALLO-BETA-LACTAMASE INHIBITORS
申请人:Merck Sharp & Dohme Corp.
公开号:US20160333021A1
公开(公告)日:2016-11-17
The present invention relates to compounds of formula (I) that are metallo-β-lactamase inhibitors, the synthesis of such compounds, and the use of such compounds for use with β-lactam antibiotics for overcoming resistance.
Oximes and hydrazones that are useful in treating sexual dysfunction
申请人:Kolasa Teodzyj
公开号:US20050176727A1
公开(公告)日:2005-08-11
The present invention relates to oximes and hydrazones of formula (I)
for the treatment of sexual dysfunction and to compositions containing compounds of formula (I) for the treatment of sexual dysfunction.
[EN] METALLO-BETA-LACTAMASE INHIBITORS<br/>[FR] INHIBITEURS DE MÉTALLO-BÊTA-LACTAMASES
申请人:MERCK SHARP & DOHME
公开号:WO2015112441A1
公开(公告)日:2015-07-30
The present invention relates to compounds of formula (I) that are metallo-β-lactamase inhibitors, the synthesis of such compounds, and the use of such compounds for use with β-lactam antibiotics for overcoming resistance.
The purpose of the present invention is to provide a glucokinase activator useful as a pharmaceutical agent such as an agent for the prophylaxis or treatment of diabetes, obesity and the like.
The present invention provides a glucokinase activator containing a compound represented by the formula (I):
wherein
R
1
is a hydrogen atom or a halogen atom;
R
2
is a group represented by
wherein each symbol is defined in the specification, or a salt thereof or a prodrug thereof.