CA2254506A1 - Piperidine derivatives and process for their production - Google Patents

Piperidine derivatives and process for their production

Info

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
Application number
CA2254506A
Other languages
French (fr)
Other versions
CA2254506C (en
Inventor
Thomas E. D'ambra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Curia Global Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25677908&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2254506(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority claimed from CA002147126A external-priority patent/CA2147126C/en
Publication of CA2254506A1 publication Critical patent/CA2254506A1/en
Application granted granted Critical
Publication of CA2254506C publication Critical patent/CA2254506C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
CA002254506A 1993-06-24 1994-06-21 Piperidine derivatives and process for their production Expired - Lifetime CA2254506C (en)

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)

* Cited by examiner, † Cited by third party
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.

Also Published As

Publication number Publication date
CA2181089A1 (en) 1994-12-25
CA2254506C (en) 2000-11-28
CA2181089C (en) 2000-05-23

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Effective date: 20140623