POSITIVE ALLOSTERIC MODULATORS OF MUSCARINIC M2 RECEPTOR
申请人:Bayer Pharma Aktiengesellschaft
公开号:US20180297994A1
公开(公告)日:2018-10-18
The present application relates to positive allosteric modulators of the muscarinic M2 receptor, especially to novel 7-substituted 1-arylnaphthyridine-3-carboxamides, to processes for preparation thereof, to the use thereof, alone or in combinations, for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, in particular for treatment and/or prevention of cardiovascular disorders and/or renal disorders.
The pyrazole compound of the present invention is represented by the following general formula (I). The pyrazole compound of the present invention or a salt thereof or a solvate thereof potently inhibits liver glycogen phosphorylase, and, therefore, is useful as a therapeutic or prophylactic agent for diabetes.
wherein each symbol denotes as described in the specifications.
Stereoselective Enol Tosylation: Preparation of Trisubstituted α,β-Unsaturated Esters
作者:Jenny M. Baxter、Dietrich Steinhuebel、Michael Palucki、Ian W. Davies
DOI:10.1021/ol047854z
日期:2005.1.1
[Reaction: see text] The stereoselective preparation of (E)- or (Z)-trisubstituted alpha,beta-unsaturated esters in three steps from N-protected glycine is presented. The key step in the synthesis is the highly selective enol tosylation of gamma-amino beta-keto esters. The enol tosylates are stable, crystalline compounds that undergo smooth and effective Suzuki-Miyaura coupling reaction with a variety
7-SUBSTITUTED 1-PYRIDYL-NAPHTHYRIDINE-3-CARBOXYLIC ACID AMIDES AND USE THEREOF
申请人:BAYER PHARMA AKTIENGESELLSCHAFT
公开号:US20190241562A1
公开(公告)日:2019-08-08
The present application relates to novel 7-substituted 1-pyridylnaphthyridine-3-carboxamides, to processes for their preparation, to their use, alone or in combinations, for the treatment and/or prevention of diseases, and to their use for the production of medicaments for the treatment and/or prevention of diseases, in particular for the treatment and/or prevention of cardiovascular disorders and/or renal disorders.
Process for preparing optically active 4-hydroxy-2-pyrrolidone
申请人:Takasago International Corporation
公开号:US05837877A1
公开(公告)日:1998-11-17
A process for preparing optically active 4-hydroxy-2-pyrrolidone comprising asymmetrically hydrogenating an N-substituted-4-amino-3-oxobutanoic ester represented by formula (I): ##STR1## wherein R.sup.1 represents a benzyloxycarbonyl group, the benzene ring of which may be substituted; and R.sup.2 represents a lower alkyl group having 1 to 4 carbon atoms, in the presence of a ruthenium-optically active phosphine complex as a catalyst to obtain an optically active N-substituted-4-amino-3-hydroxybutanoic ester, deblocking, and cyclizing the ester. A series of the reactions can be carried out in one pot. Optically active 4-hydroxy-2-pyrrolidone is obtained in high yield with high optical purity, and is useful in the synthesis of carbapenem antibiotics