JPS5444650A - 24-hydroxyisotachysterol 3 and its preparation - Google Patents
24-hydroxyisotachysterol 3 and its preparationInfo
- Publication number
- JPS5444650A JPS5444650A JP10940377A JP10940377A JPS5444650A JP S5444650 A JPS5444650 A JP S5444650A JP 10940377 A JP10940377 A JP 10940377A JP 10940377 A JP10940377 A JP 10940377A JP S5444650 A JPS5444650 A JP S5444650A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- formulai
- hydroxyisotachysterol
- compound
- preparation
- 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
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
NEW MATERIAL:24-Hydroxyisotachysterol3 of formulaI.
USE: Activated form of vitamin D3 analog. It can accelerate the calcium absorption from small intestine even in animals removed kidney and can increase the concentration of calcium in blood.
PREPARATION: 24-Hydroxyvitamin D3 of formula II is brought into contact with boron trifluoride ether complex in an inert solvent to isomerize to form the compound of formulaI. The compound of formula II is readily provided by the irradiation with ultraviolet rays and isomerization of 3β, 24-dihydroxycholesta-5,7-diene that is prepared from cholesterol of formula III through 24-oxocholesterol, 3β, 24-diacetoxychloesterol-5-ene.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10940377A JPS6034544B2 (en) | 1977-09-13 | 1977-09-13 | 24-Hydroxyisotaxerol↓3 and its production method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10940377A JPS6034544B2 (en) | 1977-09-13 | 1977-09-13 | 24-Hydroxyisotaxerol↓3 and its production method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5444650A true JPS5444650A (en) | 1979-04-09 |
JPS6034544B2 JPS6034544B2 (en) | 1985-08-09 |
Family
ID=14509351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10940377A Expired JPS6034544B2 (en) | 1977-09-13 | 1977-09-13 | 24-Hydroxyisotaxerol↓3 and its production method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034544B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6064757A (en) * | 1983-09-19 | 1985-04-13 | Kawasaki Steel Corp | Production of casting for heat exchanging body having high strength |
US5318094A (en) * | 1990-09-25 | 1994-06-07 | Allied-Signal Inc. | Production of complex cavities inside castings or semi-solid forms |
-
1977
- 1977-09-13 JP JP10940377A patent/JPS6034544B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6064757A (en) * | 1983-09-19 | 1985-04-13 | Kawasaki Steel Corp | Production of casting for heat exchanging body having high strength |
JPH0372380B2 (en) * | 1983-09-19 | 1991-11-18 | Kawasaki Steel Co | |
US5318094A (en) * | 1990-09-25 | 1994-06-07 | Allied-Signal Inc. | Production of complex cavities inside castings or semi-solid forms |
Also Published As
Publication number | Publication date |
---|---|
JPS6034544B2 (en) | 1985-08-09 |
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