DK237689D0 - PROCEDURE FOR PREPARING PYRIMIDINE DERIVATIVES - Google Patents
PROCEDURE FOR PREPARING PYRIMIDINE DERIVATIVESInfo
- Publication number
- DK237689D0 DK237689D0 DK237689A DK237689A DK237689D0 DK 237689 D0 DK237689 D0 DK 237689D0 DK 237689 A DK237689 A DK 237689A DK 237689 A DK237689 A DK 237689A DK 237689 D0 DK237689 D0 DK 237689D0
- Authority
- DK
- Denmark
- Prior art keywords
- procedure
- pyrimidine derivatives
- formula
- image
- preparing pyrimidine
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D415/00—Heterocyclic compounds containing the thiamine skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
A process for the preparation of thiamine is described. This entails Grewe diamine being heated with an orthoformic ester, the resulting pyrimidine derivative of the formula <IMAGE> being reacted with a ketone of the formula <IMAGE> and the resulting compound of the formula <IMAGE> being converted into thiamine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH185788 | 1988-05-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK237689D0 true DK237689D0 (en) | 1989-05-16 |
DK237689A DK237689A (en) | 1989-11-18 |
Family
ID=4220229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK237689A DK237689A (en) | 1988-05-17 | 1989-05-16 | PROCEDURE FOR PREPARING PYRIMIDINE DERIVATIVES |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0342482B1 (en) |
JP (1) | JP2755368B2 (en) |
AT (1) | ATE109479T1 (en) |
DE (1) | DE58908130D1 (en) |
DK (1) | DK237689A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105315272B (en) * | 2015-10-19 | 2018-10-26 | 天津大学 | A kind of preparation method of thiamine hydrochloride crystal product |
CN114181203B (en) * | 2021-12-24 | 2023-08-18 | 江苏兄弟维生素有限公司 | Preparation method of thiamine hydrochloride, application and vitamin B1 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4825198B1 (en) * | 1969-08-20 | 1973-07-26 |
-
1989
- 1989-05-09 EP EP89108309A patent/EP0342482B1/en not_active Expired - Lifetime
- 1989-05-09 AT AT89108309T patent/ATE109479T1/en not_active IP Right Cessation
- 1989-05-09 DE DE58908130T patent/DE58908130D1/en not_active Expired - Fee Related
- 1989-05-15 JP JP1118836A patent/JP2755368B2/en not_active Expired - Lifetime
- 1989-05-16 DK DK237689A patent/DK237689A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPH0217188A (en) | 1990-01-22 |
DK237689A (en) | 1989-11-18 |
EP0342482A3 (en) | 1990-11-28 |
JP2755368B2 (en) | 1998-05-20 |
DE58908130D1 (en) | 1994-09-08 |
EP0342482B1 (en) | 1994-08-03 |
ATE109479T1 (en) | 1994-08-15 |
EP0342482A2 (en) | 1989-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHB | Application shelved due to non-payment |