Title:
4-(17α-メチル-置換3-オキソエストラ-4,9-ジエン-11β-イル)ベンズアルデヒド-(1Eまたは1Z)-オキシム
Document Type and Number:
Japanese Patent JP4331478
Kind Code:
B2
Abstract:
The invention relates to a process for the production of 4-(17alpha-methyl-substituted 3-oxoestra-4,9-dien-11beta-yl)benzaldehyde-(1E or 1Z)-oximes of general formula (I), in which R1 is a hydrogen atom, a C1-6-alkyl radical or a CnF2n+1 radical, whereby n is 1, 2 or 3, R2 is a C1-4-alkyl radical, X is an OH group in E- or Z-position, and Y is an OC1-6-alkyl group, an SC1-6-alkyl group or an OCH2CnF2+1 group, whereby n is 1, 2 or 3, which provides the target compounds of formula (I) with a high yield and good selectivity
Inventors:
Schubert, Gerd
Link, sufen
Erhard, Bernd
Mueller, Gerd
Link, sufen
Erhard, Bernd
Mueller, Gerd
Application Number:
JP2002541113A
Publication Date:
September 16, 2009
Filing Date:
November 09, 2001
Export Citation:
Assignee:
Bayer Schering Pharma Aktiengesellschaft
International Classes:
C07J41/00; C07J1/00; C07J21/00; C07J71/00; C07J75/00; C07J3/00
Domestic Patent References:
| JP7149789A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Fukumoto product
Tetsuji Koga
Masaya Nishiyama
Takashi Ishida
Fukumoto product
Tetsuji Koga
Masaya Nishiyama