JPS57163400A - 5alpha-cholestan-6-one derivative - Google Patents
5alpha-cholestan-6-one derivativeInfo
- Publication number
- JPS57163400A JPS57163400A JP4906981A JP4906981A JPS57163400A JP S57163400 A JPS57163400 A JP S57163400A JP 4906981 A JP4906981 A JP 4906981A JP 4906981 A JP4906981 A JP 4906981A JP S57163400 A JPS57163400 A JP S57163400A
- Authority
- JP
- Japan
- Prior art keywords
- cholestan
- give
- formula
- derivative
- oxa
- 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
- Pyrane Compounds (AREA)
- Steroid Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
NEW MATERIAL:[ 22R,23R ]-B-Homo-7-oxa-5α-cholestan-6-one derivative of formulaI.
EXAMPLE: [ 22R,23R ]-B-homo-7- oxa-5α-cholestan- 6-one-2α,3α,22,23-tetraol or 24-demethylbrassinolide.
USE: Plant growth accelerator.
PREPARATION: For example, 22,23-dehydrocholesterol of formula III is oxidized in the presence of N-methylmorpholine N-oxide to give[22R,23R]-22,23-dihydroxy-cholesterol of formula IV, which is made subsequently to react with p- toluenesulfonic acid and methanesulfonyl chloride to give the compound of formula V. The product is subjected to oxidation, desulfonation, oxidation and acylation to give a novel intermediate of formula IV,[22R,23R]-2α,3α-diacyloxy-5α-cholestan-6-one-22,23-diol 22,23-acetanilide. Finelly, the intermediate is oxidized and subjected to deprotection to give the compound of the example.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4906981A JPS57163400A (en) | 1981-03-31 | 1981-03-31 | 5alpha-cholestan-6-one derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4906981A JPS57163400A (en) | 1981-03-31 | 1981-03-31 | 5alpha-cholestan-6-one derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57163400A true JPS57163400A (en) | 1982-10-07 |
JPS6353990B2 JPS6353990B2 (en) | 1988-10-26 |
Family
ID=12820786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4906981A Granted JPS57163400A (en) | 1981-03-31 | 1981-03-31 | 5alpha-cholestan-6-one derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57163400A (en) |
-
1981
- 1981-03-31 JP JP4906981A patent/JPS57163400A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6353990B2 (en) | 1988-10-26 |
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