Title:
PROCESS FOR PREPARATION OF OPTICALLY ACTIVE CYCLOHEXENES AND OPTICALLY ACTIVE CYCLOHEXENE DERIVATIVES TO BE USED IN THE PREPARATION
Document Type and Number:
WIPO Patent Application WO/2002/070441
Kind Code:
A1
Abstract:
Optically active, cyclohexene, cyclohexenone and cyclohexene oxide compounds are provided, which are represented by the general formulae (1) to (4): (1) (2) (3) (4) wherein R is hydrogen or CH¿2?R?2¿ (wherein R?2¿ is hydrogen, or linear or branched C1-C4 alkyl which may be fluorinated); and X is a hydroxyl-protecting group.
Inventors:
SATO FUMIE (JP)
OKAMOTO SENTARO (JP)
OKAMOTO SENTARO (JP)
Application Number:
PCT/JP2002/001907
Publication Date:
September 12, 2002
Filing Date:
March 01, 2002
Export Citation:
Assignee:
SATO FUMIE (JP)
NISSAN CHEMICAL IND LTD (JP)
OKAMOTO SENTARO (JP)
NISSAN CHEMICAL IND LTD (JP)
OKAMOTO SENTARO (JP)
International Classes:
C07D303/16; C07B53/00; C07C29/147; C07C35/17; C07C35/18; C07C35/48; C07C49/713; C07C67/29; C07C69/013; C07C69/08; C07D301/03; C07D301/12; C07D303/32; C07D303/40; C07F7/18; (IPC1-7): C07C29/147; C07C35/17; C07C35/18; C07C35/48; C07C49/713; C07D301/03; C07D301/12; C07D303/32; C07D303/40; C07F7/18
Foreign References:
| EP1078931A2 | 2001-02-28 | |||
| DE929369C | 1955-06-27 | |||
| EP0516410A2 | 1992-12-02 |
Other References:
MOURINO A. ET AL.: "Efficient and versatile synthesis of A-ring precursors of 1alpha, 25-dihydroxyvitamin D3 and analogues", TETRAHEDRON LETTERS, vol. 38, no. 26, 1997, pages 4713 - 4716, XP002953120
BARROS, M.T. ET AL.: "The first synthesis of (-)-Asperpentyn and efficient syntheses of (+)-Harveynone, (+)-Epiepoformin and (-)-Theobroxide", CHEMISTRY-A EUROPEAN JOURNAL, vol. 6, no. 21, 2000, pages 3991 - 3996, XP002953121
BARROS, M.T. ET AL.: "The first synthesis of (-)-Asperpentyn and efficient syntheses of (+)-Harveynone, (+)-Epiepoformin and (-)-Theobroxide", CHEMISTRY-A EUROPEAN JOURNAL, vol. 6, no. 21, 2000, pages 3991 - 3996, XP002953121
Attorney, Agent or Firm:
Kojima, Takashi (2F 16-12 Ginza 2-chome Chuo-ku, Tokyo, JP)
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