PT94069A - Processo para a preparacao de 3,4-dialcoxipiridinas - Google Patents

Processo para a preparacao de 3,4-dialcoxipiridinas

Info

Publication number
PT94069A
PT94069A PT9406990A PT9406990A PT94069A PT 94069 A PT94069 A PT 94069A PT 9406990 A PT9406990 A PT 9406990A PT 9406990 A PT9406990 A PT 9406990A PT 94069 A PT94069 A PT 94069A
Authority
PT
Portugal
Prior art keywords
general formula
salts
dialkoxypyridines
preparation
image
Prior art date
Application number
PT9406990A
Other languages
English (en)
Other versions
PT94069B (pt
Inventor
Bernhard Kohl
Original Assignee
Byk Gulden Lomberg Chem Fab
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=4221018&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT94069(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Byk Gulden Lomberg Chem Fab filed Critical Byk Gulden Lomberg Chem Fab
Publication of PT94069A publication Critical patent/PT94069A/pt
Publication of PT94069B publication Critical patent/PT94069B/pt

Links

Landscapes

  • Pyridine Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Plural Heterocyclic Compounds (AREA)
PT9406990A 1989-05-19 1990-05-17 Processo para a preparacao de 3,4-dialcoxipiridinas PT94069B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH189189 1989-05-19

Publications (2)

Publication Number Publication Date
PT94069A true PT94069A (pt) 1991-01-08
PT94069B PT94069B (pt) 1996-12-31

Family

ID=4221018

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9406990A PT94069B (pt) 1989-05-19 1990-05-17 Processo para a preparacao de 3,4-dialcoxipiridinas

Country Status (3)

Country Link
ES (1) ES2022032A6 (pt)
GR (1) GR1001241B (pt)
PT (1) PT94069B (pt)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150979A (ja) * 1984-08-16 1986-03-13 Takeda Chem Ind Ltd ピリジン誘導体およびその製造法
US4738975A (en) * 1985-07-02 1988-04-19 Takeda Chemical Industries, Ltd. Pyridine derivatives, and use as anti-ulcer agents
FI96860C (fi) * 1987-06-17 1996-09-10 Eisai Co Ltd Analogiamenetelmä lääkeaineena käytettävän pyridiinijohdannaisen valmistamiseksi

Also Published As

Publication number Publication date
GR1001241B (el) 1993-06-30
ES2022032A6 (es) 1991-11-16
GR900100362A (en) 1991-10-10
PT94069B (pt) 1996-12-31

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19960919

PD3A Change of proprietorship

Free format text: ALTANA PHARMA AG DE

Effective date: 20021217

PD4A Change of proprietorship

Owner name: NYCOMED GMBH, DE

Effective date: 20070914

MM4A Annulment/lapse due to non-payment of fees;searched & examined patent

Free format text: MAXIMUM VALIDITY LIMIT REACHED

Effective date: 20110919