Process for preparation of
9.alpha.-chloro-11.beta.-formyloxypregna-3,20-diones
    6.
    发明授权
    Process for preparation of 9.alpha.-chloro-11.beta.-formyloxypregna-3,20-diones 失效
    制备9α-chlor-11β-甲氧基孕激素-3,20-二氢睾酮的方法

    公开(公告)号:US5602248A

    公开(公告)日:1997-02-11

    申请号:US405110

    申请日:1995-03-16

    IPC分类号: C07J7/00 C07J17/00 C07J75/00

    CPC分类号: C07J7/0085 C07J17/00

    摘要: Disclosed is a process for producing a compound of the formula: ##STR1## by reacting a compound of the formula: ##STR2## with: (1) a chlorinating reagent selected from an N-chloroimide or an N-chloroamide; (2) an anhydrous strong acid selected from orthophosphoric acid, alkylsulfonic acids, fluoroalkylsulfonic acids or arylsulfonic acids; and (3) anhydrous dimethyl formamide; at a temperature within the range of about -78.degree. to about 0.degree. C., under anhydrous conditions under an inert atmosphere.

    摘要翻译: 公开了下式化合物的制备方法:将下式化合物(2.0)与下列化合物反应:(1)选自N-氯代酰亚胺或N-酰氯的氯化试剂, 氯代酰胺; (2)选自正磷酸,烷基磺酸,氟烷基磺酸或芳基磺酸的无水强酸; 和(3)无水二甲基甲酰胺; 在约-78℃至约0℃的温度下,在无水条件下,在惰性气氛下。

    Process for preparation of 9.alpha. -chloro-11.beta.
formyloxypregna-3.20-diones
    8.
    发明授权
    Process for preparation of 9.alpha. -chloro-11.beta. formyloxypregna-3.20-diones 失效
    制备9α-chlor-11β甲酰孕激素-3.20-二酮的方法

    公开(公告)号:US5670676A

    公开(公告)日:1997-09-23

    申请号:US455967

    申请日:1995-05-31

    CPC分类号: C07J31/006 C07J5/0076

    摘要: Disclosed is a process for producing a compound of the formula: ##STR1## by reacting a compound of the formula: ##STR2## with: (1) a chlorinating reagent selected from an N-chloroimide or an N-chloroamide; (2) an anhydrous strong acid selected from orthophosphoric acid, alkylsulfonic acids, fluoroalkylsulfonic acids or arylsulfonic acids; and (3) anhydrous dimethylformamide; at a temperature within the range of about -78.degree. to about 0.degree. C.

    摘要翻译: 公开了下式化合物的制备方法:通过使下式化合物与下列化合物反应:(1)选自N-氯代酰胺或N-氯代酰胺的氯化试剂; (2)选自正磷酸,烷基磺酸,氟烷基磺酸或芳基磺酸的无水强酸; 和(3)无水二甲基甲酰胺; 在约-78℃至约0℃的温度范围内