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    • 7. 发明申请
    • NOVEL 1'alpha'-HYDROXY VITAMIN D4 AND NOVEL INTERMEDIATES AND ANALOGUES
    • 新型1α-羟基维生素D4和新型中间体和类似物
    • WO1992005130A1
    • 1992-04-02
    • PCT/US1991006865
    • 1991-09-20
    • LUNAR CORPORATIONKNUTSON, Joyce, C.BISHOP, Charles, W.MORIARTY, Robert, M.
    • LUNAR CORPORATION
    • C07C09/00
    • A61K31/592C07C35/21C07C401/00
    • Novel 1 alpha -hydroxy vitamin D4 and novel analogues, 1,25 dihydroxy vitamin D4 and 1,24 dihydroxy vitamin D4 which are useful as active compounds of pharmaceutical compositions for the treatment of disorders of calcium metabolism. Preparation of the novel 1 alpha -hydroxy vitamin D4 starts from ergosterol which is converted in six steps to 22,23-dihydroergosterol. 22,23-dihydroergosterol was irradiated to yield vitamin D4 which is converted in four steps to 1 alpha -hydroxy vitamin D4 using a cyclovitamin procedure which produces the novel intermediates, vitamin D4 tosylate, 3,5 cyclovitamin D4 and 1 alpha -hydroxy cyclovitamin D4. 1,25 dihydroxy vitamin D4 and 1,24 dihydroxy vitamin D4 are isolated as biological products of the metabolism of novel 1 alpha -hydroxy vitamin D4 using cultured human liver cells.
    • 新型1α-羟基维生素D4和新型类似物,1,25二羟基维生素D4和1,24二羟基维生素D4,其可用作治疗钙代谢紊乱的药物组合物的活性化合物。 新型1α-羟基维生素D4的制备从麦角甾醇开始,其被六步转化为22,23-二氢麦角甾醇。 22,23-二氢麦角甾醇被照射以产生维生素D4,其使用环维生素方法四步转化为1α-羟基维生素D4,其产生新的中间体维生素D4甲苯磺酸酯,3,5环维生素D4和1α-羟基环维生素D4 。 使用培养的人肝细胞分离1,25二羟基维生素D4和1,24二羟基维生素D4作为新型1α-羟基维生素D4的代谢的生物产物。