20-EPI-22(R)-LOWER ALKYL-SUBSTITUTED VITAMIN D DERIVATIVES AND CALCIUM METABOLISM IMPROVING AGENTS CONTAINING THE SAME AS THE ACTIVE INGREDIENT

Title:

20-EPI-22(R)-LOWER ALKYL-SUBSTITUTED VITAMIN D DERIVATIVES AND CALCIUM METABOLISM IMPROVING AGENTS CONTAINING THE SAME AS THE ACTIVE INGREDIENT

Document Type and Number:

WIPO Patent Application WO/1998/039292

Kind Code:

A1

Abstract:

20-Epi-22(R)-lower alkyl-substituted vitamin D derivatives represented by general formula (I), wherein R?1�, R?2� and R?3� represent each hydrogen or a hydroxy-protective group; and R?4� represents lower (C�2-6?) alkyl.

Inventors:

YAMADA SACHIKO (JP)
YAMAMOTO KEIKO (JP)

Application Number:

PCT/JP1998/000845

Publication Date:

September 11, 1998

Filing Date:

February 27, 1998

Export Citation:

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Assignee:

KURARAY CO (JP)
YAMADA SACHIKO (JP)
YAMAMOTO KEIKO (JP)

International Classes:

A61K31/59; A61P3/02; A61P3/14; A61P5/18; A61P13/02; A61P15/00; A61P17/00; A61P17/06; A61P19/08; A61P19/10; A61P35/00; C07C401/00; (IPC1-7): C07C401/00; A61K31/59

Foreign References:

JPH0625155A	1994-02-01
JPH07330713A	1995-12-19

Attorney, Agent or Firm:

Hosoda, Yoshinori (Otemae M2 Building 8-1, Tanimachi 2-chome, Chuo-k, Osaka-shi Osaka, JP)

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