中文名称：环索奈德英文名称：CiclesonideY0001553环索奈德杂质A：CiclesonidecontainingimpurityAY0001554(2’S)-2’-cyclohexyl-11b-hydroxy-3,20-dioxo-16bH-[1,3]dioxolo[4‘,5’:16,17]pregna-1,4-diene-21-yl2-methylpropanoate(S-epimerofciclesonide)环索奈德杂质B：CiclesonideimpurityBY0001555(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：CiclesonideimpurityCY0001556(2ʹR)-2ʹ-[(1RS)-cyclohex-3-enyl]-11b-hydroxy-3,20-dioxo-16bH-[1,3]dioxolo[4ʹ,5ʹ:16,17]pregna-1,4-diene-21-yl2-methylpropanoate)