Novel 3,20-dioxo-7.alpha.-halogeno-1,4-pregnadienes are described and their use as anti-inflammatory agents. Preferred are 7.alpha.-bromo- and 7.alpha.-chloro- derivatives, particularly 7.alpha.-bromo- and 7.alpha.-chloro-1,4-pregnadienes-11.beta.,17.alpha.,21-triol-3,20-dione 17,21-dihydrocarboncarboxylates, the 16-methyl and 16-methylene derivatives thereof being particularly valuable as topical anti-inflammatory agents.
本文描述了新型的3,20-二酮-7.alpha.-卤代-1,4-孕二烯,并且它们的使用作为抗炎药物。首选的是7.alpha.-
溴和7.alpha.-
氯衍
生物,特别是7.alpha.-
溴和7.alpha.-
氯-1,4-孕二烯-11.beta.,17.alpha.,21-三醇-3,20-二酮17,21-二氢
碳酸酯,其中16-甲基和16-亚甲基衍
生物作为局部抗炎药物尤其有价值。