CA2254506A1 - Piperidine derivatives and process for their production - Google Patents
Piperidine derivatives and process for their productionInfo
- Publication number
- CA2254506A1 CA2254506A1 CA2254506A CA2254506A CA2254506A1 CA 2254506 A1 CA2254506 A1 CA 2254506A1 CA 2254506 A CA2254506 A CA 2254506A CA 2254506 A CA2254506 A CA 2254506A CA 2254506 A1 CA2254506 A1 CA 2254506A1
- Authority
- CA
- Canada
- Prior art keywords
- production
- piperidine derivatives
- alkyl
- substantially pure
- pure regioisomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Hydrogenated Pyridines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention relates to substantially pure regioisomer as shown below, wherein R3 is -COOH or -COOR4; R4 is an alkyl with 1 to 6 carbon atoms; A is a substituent of its rings which may be different or the same, and are selected from the group consisting of hydrogen, halogens, alkyl, hydroxy, or alkoxy. A process of preparing said substantially pure regioisomer is also disclosed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8310293A | 1993-06-24 | 1993-06-24 | |
US08/083,102 | 1993-06-24 | ||
CA002147126A CA2147126C (en) | 1993-06-24 | 1994-06-21 | Piperidine derivatives and process for their production |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002147126A Division CA2147126C (en) | 1993-06-24 | 1994-06-21 | Piperidine derivatives and process for their production |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2254506A1 true CA2254506A1 (en) | 1995-01-05 |
CA2254506C CA2254506C (en) | 2000-11-28 |
Family
ID=25677908
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002181089A Expired - Lifetime CA2181089C (en) | 1993-06-24 | 1994-06-21 | Piperidine derivatives and process for their production |
CA002254506A Expired - Lifetime CA2254506C (en) | 1993-06-24 | 1994-06-21 | Piperidine derivatives and process for their production |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002181089A Expired - Lifetime CA2181089C (en) | 1993-06-24 | 1994-06-21 | Piperidine derivatives and process for their production |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2181089C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX9605613A (en) | 1994-05-18 | 1998-05-31 | Hoechst Marion Roussel Inc | Processes for preparing anhydrous and hydrate forms of antihistaminic piperidine derivatives, polymorphs and pseudormophs thereof. |
-
1994
- 1994-06-21 CA CA002181089A patent/CA2181089C/en not_active Expired - Lifetime
- 1994-06-21 CA CA002254506A patent/CA2254506C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2181089A1 (en) | 1994-12-25 |
CA2254506C (en) | 2000-11-28 |
CA2181089C (en) | 2000-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2147126A1 (en) | Piperidine Derivatives and Process for Their Production | |
ATE121091T1 (en) | PHOSPHOLIPASE A2 INHIBITOR, MICROORGANISMS PRODUCING THIS INHIBITOR AND SEVERAL METHODS FOR PRODUCING IT. | |
CA2145630A1 (en) | Microorganisms for the production of tryptophan and process for producing the same | |
CA2240927A1 (en) | Process for production of piperidine derivatives | |
CA2178604A1 (en) | Novel imidazole derivative and process for producing the same | |
AU3274997A (en) | Intermediates for the preparation of duocarmycin sa and derivatives thereof, and process for the production of the intermediates | |
GB0121214D0 (en) | Synthetic method | |
AU4314596A (en) | Process for producing 2-(2-hydroxymethylphenyl)acetamide derivative and intermediate for the production thereof | |
CA2275253A1 (en) | Method for producing n-substituted 3-hydroxypyrazoles | |
CA2254506A1 (en) | Piperidine derivatives and process for their production | |
AR031529A1 (en) | PROCESS FOR THE PRODUCTION OF DERIVATIVES OF ACID 5-ALQUILFENILACETICO | |
AU3259997A (en) | Ring-fused dihydropyranes, process for the preparation and use thereof | |
IL145869A0 (en) | A process for the production of paclitaxel and novel paclitaxel derivatives | |
WO2000001671A3 (en) | Antihistaminic piperidine derivatives and intermediates for the preparation thereof | |
CA2379981A1 (en) | Process for producing isocoumarins and intermediates for the same | |
UA41890C2 (en) | process for the preparation of derivatives of 2-perfluoroalkyl-3-oxazoline-5-on (variants), perfluoroalkanoylaminonitrile intermediary compounds | |
EP1065202A4 (en) | 6-(alpha-fluoroalkyl)-4-pyrimidones and process for producing the same | |
EP0781773A4 (en) | Novel carbapenem derivative | |
AU2639999A (en) | Intermediate compounds in the synthesis of the a ring moiety of 2-substituted vitamin d derivatives | |
EP1270549A4 (en) | Polymer-immobilized alpha-iminoester | |
WO2001012597A3 (en) | Method for preparing quinoline-5,8-diones | |
CA2122705A1 (en) | Optically Active 1-Phenylpyrrolidone Derivative, Intermediate for Producing the Same, and Process for Producing Both | |
EP0648743A4 (en) | ||
MX9710530A (en) | BENZO[g]QUINOLINE DERIVATIVES. | |
AU3006501A (en) | Pyrone derivatives and a method for producing same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20140623 |