Significance Vitamin D (VitD), a group of secosteroids, has proved to be an essential molecule in supporting overall human health. Structurally, modification at C20 has led to the discovery of novel analogs with a wide range of biological targets. Among them, calcipotriol (Daivonex; LEO Pharma) has been a proven clinical drug for the treatment of psoriasis, an autoimmune skin disease. This work relates
意义
维生素 D (VitD) 是一组类
固醇,已被证明是支持人类整体健康的重要分子。在结构上,C20 的修饰导致发现了具有广泛
生物靶标的新型类似物。其中,
钙泊三醇(Daivonex;L
EO Pharma)已被证实可用于治疗自身免疫性皮肤病牛皮癣。这项工作涉及用于制备一系列 VitD 衍
生物(包括
卡泊三醇)的中间体的改进制备方法,以及
卡泊三醇的制备方法。战略性的债券断开使 A 环和 CD 环的从头合成成为可能,而不是与半合成结合。