中文名称：环索奈德

英文名称：Ciclesonide Y0001553

126544-47-6   141845-82-1
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