STEROID AND ITS PRODUCTION - DAINIPPON INK & CHEMICALS

Title:

STEROID AND ITS PRODUCTION

Document Type and Number:

Japanese Patent JPS63277694

Kind Code:

A

Abstract:

NEW MATERIAL:A compound of the formula [W, X form >W-X such as carbonyl or β-hydroxyl; Y, Z form -Y-Z such as -PPSe)CH-CH2-(PP is phenyl, 2-pyridyl), -CH=CH-, -CBr=CH-, OR1, OR2 are acyloxy, sulfate ester or phosphate ester].

USE: A synthetic intermediate of 6α,9α-difluorocorticoids.

PREPARATION: Pyridyl selenenyl chloride, pyridyl selenenyl bromide, phenyl selenenyl chloride or phenyl selenenyl bromide is allowed to act on 6β,9α- difluoro-5α,17α,21-trihydroxypregna-3, 11, 2-trione-17,21-diester of 6β,9α-difluoro-5α, 11β,17α,21-tetrahydroxypregna-3,20-d-ione-17,21-diester.

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Inventors:

TAKAGAKI HIDEJI
ABE MASAYOSHI
WATANABE MICHIHIRO
TAKEUCHI KAZUYUKI
NAKANISHI SHIGENORI
AIHARA HIROKO
YAMAZAKI KEIJI

Application Number:

JP27893187A

Publication Date:

November 15, 1988

Filing Date:

November 04, 1987

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS

International Classes:

C07J5/00; C07J43/00; C07J51/00; (IPC1-7): C07J5/00; C07J43/00; C07J51/00

Domestic Patent References:

JPS55154998A	1980-12-02
JPS5822100A	1983-02-09

Attorney, Agent or Firm:

Takahashi victory

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