JPS5718679A - Preparation of oxoalkylxanthine - Google Patents
Preparation of oxoalkylxanthineInfo
- Publication number
- JPS5718679A JPS5718679A JP9278380A JP9278380A JPS5718679A JP S5718679 A JPS5718679 A JP S5718679A JP 9278380 A JP9278380 A JP 9278380A JP 9278380 A JP9278380 A JP 9278380A JP S5718679 A JPS5718679 A JP S5718679A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- compound shown
- acid
- aminouracil
- reacted
- 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.)
- Pending
Links
Abstract
PURPOSE: To obtain the titled substance useful as a telangiectatic agent, etc. simply, economically, and in high yield, by reacting 3,7-dimethyluric acid as a raw material with a compound, e.g., 1-bromohexanone-5, etc., followed by removing carbonyl group.
CONSTITUTION: 3,7-Dimethyluric acid shown by the formula I is reacted with a compound shown by the formula II (X is halogen, hydroxyl group, alkyl or arylsulfonyloxy) in a solvent, e.g., methanol, etc., to give a reaction product, which is reacted with formic acid so that a carbonyl group is removed, to give a compound shown by the formula III. The compound shown by the formula I, for example, is obtained easily by reacting 1-methyl-5-methylamino-6-aminouracil prepared from 6- aminouracil with a carbonylating agent, e.g., chlorocarbonic acid ester, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9278380A JPS5718679A (en) | 1980-07-09 | 1980-07-09 | Preparation of oxoalkylxanthine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9278380A JPS5718679A (en) | 1980-07-09 | 1980-07-09 | Preparation of oxoalkylxanthine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718679A true JPS5718679A (en) | 1982-01-30 |
Family
ID=14064010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9278380A Pending JPS5718679A (en) | 1980-07-09 | 1980-07-09 | Preparation of oxoalkylxanthine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718679A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112893A (en) * | 1978-02-21 | 1979-09-04 | Kohjin Co Ltd | Preparation of 1-(5'-oxohexyl)-3,7-diethylxanthine |
JPS5513215A (en) * | 1978-07-13 | 1980-01-30 | Shiratori Seiyaku Kk | Preparation of 1-(5-oxohexyl)-3,7-dimethylxanthine |
-
1980
- 1980-07-09 JP JP9278380A patent/JPS5718679A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112893A (en) * | 1978-02-21 | 1979-09-04 | Kohjin Co Ltd | Preparation of 1-(5'-oxohexyl)-3,7-diethylxanthine |
JPS5513215A (en) * | 1978-07-13 | 1980-01-30 | Shiratori Seiyaku Kk | Preparation of 1-(5-oxohexyl)-3,7-dimethylxanthine |
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