The invention relates to a method for the production of 4-(17&agr; substituted 3-oxoestra-4,9-dien-11&bgr;-yl)benzaldehyd-(1E or 1Z)-oximes of general formula (I), where R
1
═H, C
1-6
alkyl or a C
n
F
2n+1
group; R
2
═C
1-4
alkyl, X=E- or Z-OH; and Y═O—C
1-6
alkyl, S—C
1-6
alkyl or O—CH
2
C
n
F
2n+1
, where n=1, 2 or 3, which produces the target compounds of formula (I) with high yield and selectivity.
本发明涉及一种通式(I)的 4-(17&agr;取代的 3-氧代
雌甾-4,9-二烯-11&bgr;-基)
苯甲醛-(1E 或 1Z)-
肟的生产方法,其中 R
1
═H, C
1-6
烷基或 C
n
F
2n+1
基团;R
2
═C
1-4
烷基,X 等于;E- 或 Z-OH;和 Y═O-C
1-6
烷基,S-C
1-6
烷基或 O-CH
2
C
n
F
2n+1
其中 n=1, 2 或 3,可以高产率和高选择性地生产出式(I)的目标化合物。