中文名称：环索奈德
英文名称：Ciclesonide Y0001553
环索奈德杂质A：Ciclesonide containing impurity A Y0001554
(2’S)-2’-cyclohexyl-11b-hydroxy-3,20-dioxo-16bH-[1,3]dioxolo[4‘,5’:16,17]pregna-1,4-diene-21-yl 2-methylpropanoate (S-epimer of ciclesonide)
环索奈德杂质B：Ciclesonide impurity B Y0001555
(2’R)-2’-cyclohexyl-11b,21-dihydroxy-16bH-[1,3]dioxolo[4’,5’:16,17]pregna-1,4-diene-3,20-dione
环索奈德杂质C：Ciclesonide impurity C Y0001556
(2ʹR)-2ʹ-[(1RS)-cyclohex-3-enyl]-11b-hydroxy-3,20-dioxo-16bH-[1,3]dioxolo[4ʹ,5ʹ:16,17]pregna-1,4-diene-21-yl 2-methylpropanoate