11β,17α-Dihydroxy-21-(4-methylpiperazin-1-yl)pregna-1,4-diene-3,20-dione Mazipredona Mazipredone [inn] Mazipredonum 11,17-Dihydroxy-10,13-dimethyl-17-(2-(4-methylpiperazin-1-yl)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one Pregna-1,4-diene-3,20-dione, 11,17-dihydroxy-21-(4-methyl-1-piperazinyl)-, (11β)-