Title:
PRODUCTION METHOD FOR CYCLOPENTANONE DERIVATIVE, INTERMEDIATE COMPOUND, AND PRODUCTION METHOD FOR INTERMEDIATE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2013/108514
Kind Code:
A1
Abstract:
A production method for a compound indicated by general formula (V), including a step in which a compound indicated by general formula (II) is obtained by reacting a compound indicated by general formula (I) with an acid. (G1 and G2 each indicate a protecting group that dissociates under acidic conditions.)
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Inventors:
KANNO HISASHI (JP)
KIKUMOTO SHIGEYUKI (JP)
KIKUMOTO SHIGEYUKI (JP)
Application Number:
PCT/JP2012/081903
Publication Date:
July 25, 2013
Filing Date:
December 10, 2012
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
C07D319/08; C07C45/65; C07C45/75; C07C49/657; C07C49/747; C07C49/753; C07D249/08
Domestic Patent References:
| WO2011070771A1 | 2011-06-16 | |||
| WO2011070771A1 | 2011-06-16 |
Foreign References:
| JP2006016355A | 2006-01-19 | |||
| US3649678A | 1972-03-14 |
Other References:
MUELLER, PAUL ET AL.: "Decarboxylation of beta-keto esters in hexamethyl phosphoric triamide", TETRAHEDRON LETTERS, 1973, pages 3565 - 3568, XP055158220
HENDERSON, DOUGLAS ET AL.: "A quick and efficient route to 2-substituted cyclopentanones and cyclohexanones", SYNTHESIS, 1983, pages 996 - 997, XP000616229
GUERRAB, ZINEB ET AL.: "Lipase-catalyzed kinetic resolution of a-hydroxymethylcycloalkanones with a quaternary carbon center. Chemoenzymatic synthesis of chiral pseudoiridolactones", TETRAHEDRON: ASYMMETRY, vol. 21, no. 13-14, 2010, pages 1752 - 1757, XP027185292
See also references of EP 2805944A4
HENDERSON, DOUGLAS ET AL.: "A quick and efficient route to 2-substituted cyclopentanones and cyclohexanones", SYNTHESIS, 1983, pages 996 - 997, XP000616229
GUERRAB, ZINEB ET AL.: "Lipase-catalyzed kinetic resolution of a-hydroxymethylcycloalkanones with a quaternary carbon center. Chemoenzymatic synthesis of chiral pseudoiridolactones", TETRAHEDRON: ASYMMETRY, vol. 21, no. 13-14, 2010, pages 1752 - 1757, XP027185292
See also references of EP 2805944A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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Claims: