Substituted N-(3-hydroxy-4-piperidinyl)benzamides as gastrointestinal
申请人:Janssen Pharmaceutica N.V.
公开号:US04906643A1
公开(公告)日:1990-03-06
N-(3-hydroxy-4-piperidinyl)substituted benzamides, their N-oxide forms and pharmaceutically acceptable acid-addition salts having gastrointestinal motility stimulating properties, compositions containing the same, and methods of treating warm blooded animals suffering from a decreased peristalsis of the gastrointestinal system.
In order to search for new psychotropic agents, several 1-butanone derivatives (VIII) substituted by pyridine, indole or quinoline were synthesized. And the carbonyl group of VIII was modified to methylene (XII), secondary alcohol (XIII) and vinyl (XIV). The effects of the compounds on spontaneous motor activity and rotarod test in mice were determined. The structure-activity relationships of these derivatives are discussed.
Substituted piperazines as central nervous system agents
申请人:Warner-Lambert Company
公开号:US05089497A1
公开(公告)日:1992-02-18
Substituted piperazines and derivatives thereof are described, as well as methods for the preparation and pharmaceutical composition of same, which are useful as central nervous system agents and are particularly useful as dopaminergic, antipsychotic, and antihypertensive agents as well as for treating hyperprolactinaemia-related conditions and central nervous system disorders.
Substituted tetrahydropyridines as central nervous system agents
申请人:Warner-Lambert Co.
公开号:US05045550A1
公开(公告)日:1991-09-03
Substituted tetrahydropyridines and derivatives thereof are described, as well as methods for the preparation and pharmaceutical composition of same, which are useful as central nervous system agents and are particularly useful as dopaminergic, antipsychotic, and antihypertensive agents as well as for treating hyperprolactinaemia-related conditions and central nervous system disorders.
METHOD FOR PRODUCING OPTICALLY ACTIVE ALPHA-SUBSTITUTED PROLINE
申请人:API CORPORATION
公开号:US20140127762A1
公开(公告)日:2014-05-08
The present invention aims to provide an industrial method practically suitable for producing optically active α-substituted prolines from an acyclic ketone compound by a small number of steps under mild conditions. The present invention relates to a production method of an optically active α-substituted proline (4) and/or an optically active α-substituted prolinamide (5), including (a) reacting an acyclic ketone compound (1) with at least one selected from ammonia, an ammonium salt, primary amine and a salt of primary amine, and a cyanating agent to give a cyclic nitrogen-containing compound (2), (b) hydrating the cyclic nitrogen-containing compound (2) to give an α-substituted prolinamide (3), and (c) resolving the α-substituted prolinamide (3) by one or more of (d) enzymatical hydrolysis, (e) resolution by diastereomeric salt formation, and (f) separation by column chromatography.