Title:
１７−スピロラクトンを得る方法
Document Type and Number:
Japanese Patent JP5703295
Kind Code:
B2
Abstract:
The invention relates to processes for obtaining steroids with a spirolactone group in position 17, particularly to industrially obtaining 6²,7²; 15², 16²-dimethylene-3-oxo-17±-pregn-4-ene-21,17-carbolactone, commonly known as Drospirenone, as well as to intermediates useful in said process.
Inventors:
Iglesias Retuelto, Jesus Miguel
Gutierrez Fuentes, Luis Herald
Lorente Bonde-Larsen, Antonio
Gutierrez Fuentes, Luis Herald
Lorente Bonde-Larsen, Antonio
Application Number:
JP2012515457A
Publication Date:
April 15, 2015
Filing Date:
June 15, 2010
Export Citation:
Assignee:
CRYSTAL PHARMA,S.A.U.
International Classes:
C07J53/00
Foreign References:
| WO2008137050A1 | ||||
| WO1998006738A1 | ||||
| WO2007009821A1 |
Other References:
MIDLAND,M.M. et al.,Journal of Organic Chemistry,1980年,Vol.45, No.1,p.28-9
KAMATA,S. et al.,J. Med. Chem.,1987年,Vol.30, No.9,p.1647-58
KAMATA,S. et al.,J. Med. Chem.,1987年,Vol.30, No.9,p.1647-58
Attorney, Agent or Firm:
Konno Akio