JPS5498754A - 3-hydroxy-3-bromomethylphthalide derivative - Google Patents
3-hydroxy-3-bromomethylphthalide derivativeInfo
- Publication number
- JPS5498754A JPS5498754A JP368078A JP368078A JPS5498754A JP S5498754 A JPS5498754 A JP S5498754A JP 368078 A JP368078 A JP 368078A JP 368078 A JP368078 A JP 368078A JP S5498754 A JPS5498754 A JP S5498754A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxy
- ethoxycarbonyl
- formula
- bromomethylphthalide
- derivative
- 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
Landscapes
- Furan Compounds (AREA)
Abstract
NEW MATERIAL:3-Hydroxy-3-bromomethyl-6-ethoxycarbonyl-5,7-dimethylphthalide of formula I.
USE: An intermediate of 7-ethoxycarbonyl-4-hydroxymethyl-6,8-dimethyl-1-phthalazone that is effective in the prevention of arteriosclerosis and thrombosis.
PREPARATION: The reaction of 6-ethoxycarbonyl-3-hydroxy-3,5,7-trimethylphthalide of formula II with bromine is effected in a slovent as acetic acid under refluxing with heat to produce the objective compound of formula I. The addition of water into the reaction medium in an amount of from a trace to about 20% is required to produce the product in high hield.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP368078A JPS5498754A (en) | 1978-01-19 | 1978-01-19 | 3-hydroxy-3-bromomethylphthalide derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP368078A JPS5498754A (en) | 1978-01-19 | 1978-01-19 | 3-hydroxy-3-bromomethylphthalide derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5498754A true JPS5498754A (en) | 1979-08-03 |
Family
ID=11564113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP368078A Pending JPS5498754A (en) | 1978-01-19 | 1978-01-19 | 3-hydroxy-3-bromomethylphthalide derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498754A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007284892A (en) * | 2006-04-13 | 2007-11-01 | Richell Corp | Traffic regulation gate equipment |
US7568449B2 (en) | 2004-11-24 | 2009-08-04 | Richell U.S.A., Inc. | Freestanding pet barrier |
US8528257B2 (en) | 2011-03-04 | 2013-09-10 | Richell Corporation | Convertible pet barrier with a connection member |
-
1978
- 1978-01-19 JP JP368078A patent/JPS5498754A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7568449B2 (en) | 2004-11-24 | 2009-08-04 | Richell U.S.A., Inc. | Freestanding pet barrier |
US7954456B2 (en) | 2004-11-24 | 2011-06-07 | Richell U.S.A., Inc. | Freestanding pet barrier |
US8230816B2 (en) | 2004-11-24 | 2012-07-31 | Richell U.S.A., Inc. | Freestanding pet barrier |
JP2007284892A (en) * | 2006-04-13 | 2007-11-01 | Richell Corp | Traffic regulation gate equipment |
US8528257B2 (en) | 2011-03-04 | 2013-09-10 | Richell Corporation | Convertible pet barrier with a connection member |
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