2002-29-1 6,9-Difluoro-11,17-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-21-yl pivalate 6.Alpha.,9-Difluoro-11.beta.,17,21-trihydroxy-16.alpha.-methylpregna-1,4-diene-3,20-dione 21-pivalate 6.Alpha.,9.alpha.-Difluoro-16.alpha.-methylprednisolone 21-pivalate AIDS-126389 AIDS126389 Flumethasone pivalate Locacorten Locorten Lorinden NSC107680 Pregna-1,4-diene-3,20-dione, 21-(2,2-dimethyl-1-oxopropoxy)-6,9-difluoro-11, 17-dihydroxy-16-methyl-, (6.alpha.,11.beta.,16.alpha.)-