Fluorometholone, fluorometholone acetate, and preparation method thereof

• Main Authors: LIU XIRONG, XIE ZUOYI, ZENG CHUNLING
• Format: Patent
• Language: Chinese; English
• Published: 28.02.2020
• Subjects: CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; STEROIDS

The invention discloses fluorometholone, fluorometholone acetate, and a preparation method thereof. According to the preparation method, a compound represented by a formula (II) is taken as a raw material, the compound carries out de-chlorination reaction, esterification reaction, methenylation reaction, hydrogenation reaction, fermentation de-hydrogenation reaction, epoxidation reaction, and ring-opening reaction in sequence to obtain derivatives of fluorometholone; and fluorometholone derivatives carry out hydrolysis to obtain fluorometholone. The preparation method has the advantages of short synthesis route, high yield, low raw material cost, easily available raw materials, simple and convenient purification, high product purity, and strong technological operability, is suitable for industrial production, and has a high industrialization value. 本发明公开了一种氟米龙及氟米龙醋酸酯与制备方法。该制备方法以式Ⅱ所示化合物为原料，依次经过脱氯反应、酯化反应、次甲基化反应、氢化反应、发酵脱氢反应、环氧反应、开环反应，制得氟米龙的衍生物，氟米龙的衍生物再经过水解反应，制得氟米龙，该制备方法合成路线短，收率高，原料成本低，原料易得，纯化方便简单，产品纯度高，工艺可操作性强，适