JPS6429396A - Castasterone derivative - Google Patents

Castasterone derivative

Info

Publication number
JPS6429396A
JPS6429396A JP62185507A JP18550787A JPS6429396A JP S6429396 A JPS6429396 A JP S6429396A JP 62185507 A JP62185507 A JP 62185507A JP 18550787 A JP18550787 A JP 18550787A JP S6429396 A JPS6429396 A JP S6429396A
Authority
JP
Japan
Prior art keywords
formula
expressed
compound expressed
hydroxyl
methyl
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
Application number
JP62185507A
Other languages
Japanese (ja)
Other versions
JP2540047B2 (en
Inventor
Tetsuji Kametani
Toshio Honda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HORIUCHI ITARO SHOTEN KK
HORIUCHIITAROU SHOTEN KK
Daiichi Pharmaceutical Co Ltd
Original Assignee
HORIUCHI ITARO SHOTEN KK
HORIUCHIITAROU SHOTEN KK
Daiichi Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HORIUCHI ITARO SHOTEN KK, HORIUCHIITAROU SHOTEN KK, Daiichi Pharmaceutical Co Ltd filed Critical HORIUCHI ITARO SHOTEN KK
Priority to JP62185507A priority Critical patent/JP2540047B2/en
Publication of JPS6429396A publication Critical patent/JPS6429396A/en
Application granted granted Critical
Publication of JP2540047B2 publication Critical patent/JP2540047B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Steroid Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:A compound expressed by formula I (X and Y are H, OH, methyl or hydroxymethyl; X and Y together may form methylene, oxymethylene, etc.; Z is H, OH or lower alkyl; R is H or hydroxyl-protecting group). EXAMPLE:(22R,23R,24R)-2alpha,3alpha,22,23,28-Pentahydroxy-5alpha-ergos tan-6-one (28-hydro xycastasterone). USE:A plant growth promoter. PREPARATION:For example, a steroid derivative expressed by formula II (St is steroid ring; Me is methyl) is reacted with a tetronic acid derivative expressed by formula III (R' is alkyl, etc.) to provide a compound expressed by formula IV (R<1> is hydroxyl-protecting group), which is then catalytically reduced to cleave the lactone ring and afford the aimed compound expressed by formula I.
JP62185507A 1987-07-27 1987-07-27 Castasterone derivative Expired - Lifetime JP2540047B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62185507A JP2540047B2 (en) 1987-07-27 1987-07-27 Castasterone derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62185507A JP2540047B2 (en) 1987-07-27 1987-07-27 Castasterone derivative

Publications (2)

Publication Number Publication Date
JPS6429396A true JPS6429396A (en) 1989-01-31
JP2540047B2 JP2540047B2 (en) 1996-10-02

Family

ID=16171991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62185507A Expired - Lifetime JP2540047B2 (en) 1987-07-27 1987-07-27 Castasterone derivative

Country Status (1)

Country Link
JP (1) JP2540047B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774652B1 (en) * 2001-11-08 2007-11-08 현대자동차주식회사 suspension system for truck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774652B1 (en) * 2001-11-08 2007-11-08 현대자동차주식회사 suspension system for truck

Also Published As

Publication number Publication date
JP2540047B2 (en) 1996-10-02

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