| abstract |
Case 4-10717/+ Canada Polyhalogenated steroids Abstract of the Disclosure Novel 9.alpha.,21-dihalogeno-11.beta.,17.alpha.-dihydroxy-6.alpha.-fluoro-16.beta.-methyl-pregna-1,4-diene-3,2O-dione compounds of the formula in which X1 represents chlorine or fluorine, X2 represents bromine or chlorine, R1 represents hydrogen or chlorine and R2 represents hydrogen or the acyl radical Ac of a carboxylic acid, are useful pharmaceuticals, especially antiinflammatory agents for topical administration. |