| 摘要 |
<p>The invention relates to a method for the production of 4-(17alpha substituted 3-oxoestra-4,9-dien-11beta-yl)benzaldehyd-(1E or 1Z)-oximes of general formula (I), where R<SUB>1</SUB>-H, C<SUB>1-6 </SUB>alkyl or a C<SUB>n</SUB>F<SUB>2n+1 </SUB>group; R<SUB>2</SUB>-C<SUB>1-4 </SUB>alkyl, X=E- or Z-OH; and Y-O-C<SUB>1-6 </SUB>alkyl, S-C<SUB>1-6 </SUB>alkyl or O-CH<SUB>2</SUB>C<SUB>n</SUB>F<SUB>2n+1</SUB>, where n=1, 2 or 3, which produces the target compounds of formula (I) with high yield and selectivity.</p> |
