| 摘要 |
This invention relates to a process for the production of 4-(17alpha-alkoxymethyl-17beta-substituted-3-oxoestra-4,9-dien-11beta-yl)benzaldehyde-(1E)-oxime derivatives of general formula (I) in which R means an amino group, an O-C<SUB>1-7</SUB>-alkyl- or O-aryl radical, an S-C<SUB>1-7</SUB>-alkyl- or S-aryl radical, an NH-C<SUB>1-7</SUB>-alkyl- or NH-aryl radical or an N-di-C<SUB>1-7</SUB>-alkyl radical, and R<SUB>1 </SUB>means a hydrogen atom or a C<SUB>1-6</SUB>-alkyl radical, which yields the target compounds of formula (I) with high yield and selectivity.
|
