Mometasone (9α,21-dichloro-1 β,17α-dihydroxy-16α-methyl-pregna-1,4-dine-3,20-dione) is prepared from icomethasone (9α-chloro-11β,17α,21-trihydroxy-16α-methyl-pregna-1,4-diene-3,20-dione) by reaction thereof with a sulfonyl chloride of formula R-C1O2S wherein R is CH3 or p-CH3C6H4 in the presence of a tertiary amine and solvent, and the 21-sulfonate so obtained is reacted with a source of chloride ions. The new compound mometasone thus obtained is a potent anti-inflammatory agent.
莫米松(9α,21-二
氯-1β,17α-二羟基-16α-甲基孕-1,4-二烯-3,20-二酮)是从伊科美松(9α-
氯-11β,17α,21-三羟基-16α-甲基孕-1,4-二烯-3,20-二酮)中反应出来的,其与
化学式为R-C1O2S的
磺酰氯在三级胺和溶剂的存在下反应,其中R为
CH3或p- C6H4,然后所得到的21-
磺酸盐与
氯离子的来源反应。因此,新化合物莫米松是一种有效的抗炎药物。