聚合甲醛 、 环维黄杨星 D 以
乙醇 为溶剂,
以97.5 %的产率得到(3beta,4'beta,5alpha,16beta,17alpha)-3',4',16,17-四氢-N,3',4,4,4',14-六甲基-2'H-9,19-环雄甾-16-烯并[17,16-E][1,3]恶嗪-3-胺
参考文献:
名称:
结构修饰的环维黄杨星-D 黄杨生物碱通过 Cav3.2 T 型钙通道抑制作为有效镇痛剂
摘要:
Cyclovirobuxine-D (CVB-D) 是一种黄杨生物碱,是中药黄杨的主要活性成分。传统上,天然生物碱环维黄杨星-D 作为治疗心血管疾病以及治疗多种疾病的中药有着悠久的历史。由于我们发现CVB-D抑制T型钙通道,我们设计并合成了多种片段和类似物,并首次将它们作为新的Ca v 3.2抑制剂进行评估。化合物2 – 7表现出对抗 Ca v 3.2 通道的效力,其中两个比其母体分子更活跃。体内实验的结果是,化合物3和4在乙酸诱导的扭体试验中均显示出显着减少的扭体。分子模型研究已经确定了 Ca v 3.2 结合的可能机制。此外,还初步研究了结构与活性之间的关系。我们的结果表明化合物3和4可以在新型镇痛药的发现和开发中发挥重要作用。
Short and Efficient Approach Towards Buxozine-C, an Alkaloid fromBuxus sempervirens
作者:Hai-Feng Liu、Min Ji、Jin Cai
DOI:10.1002/ardp.200600063
日期:2006.12
Buxus alkaloids display a wide range of interesting pharmacological activities. Here, we present a short and efficientapproachtowards one of the alkaloids, buxozine‐C. The first synthesis has been achieved with 91% yield starting from cyclovirobuxine‐D by forming a tetrahydro‐oxazine ring with formaldehyde at room temperature.
黄杨生物碱显示出广泛的有趣的药理活性。在这里,我们提出了一种针对其中一种生物碱布唑嗪 - C 的简短而有效的方法。通过在室温下与甲醛形成四氢恶嗪环,以环维黄杨星 D 为起始原料,以 91% 的收率实现了第一次合成。
An efficient one-pot synthesis of cyclovirobuxine A from buxozine C
作者:Hai-Feng Liu、Xiao-Qing Wu、Yan-Bing Duan、Ren-Bo Dou、Hai-Feng Sun、Min Ji
DOI:10.1007/s10600-009-9202-8
日期:2008.11
3-aminopropanol derivatives. Buxozine-C (1), the first Buxus alkaloid possessing a tetrahydro-oxazine ring joined to position 16a, 17b of the androstane skeleton, was first isolated from Buxus sempervirens L. Its structure elucidation was reported by Voticky [5] in 1977, and it was obtained by semisynthesis from cyclovirobuxine D [6]. Cyclovirobuxine A (2), a Buxus alkaloid, was first isolated by Khuong-Huu-Laine
Cyclovirobuxine-D (CVB-D) is a Buxusalkaloid and a major active constituent in the Chinese medicinal herb Buxus microphylls. Traditionally, the natural alkaloid cyclovirobuxine-D has a long history of use as a traditional Chinese medicine for cardiovascular diseases as well as to treat a wide variety of medical conditions. As we found that CVB-D inhibited T-type calcium channels, we designed and synthesized
Cyclovirobuxine-D (CVB-D) 是一种黄杨生物碱,是中药黄杨的主要活性成分。传统上,天然生物碱环维黄杨星-D 作为治疗心血管疾病以及治疗多种疾病的中药有着悠久的历史。由于我们发现CVB-D抑制T型钙通道,我们设计并合成了多种片段和类似物,并首次将它们作为新的Ca v 3.2抑制剂进行评估。化合物2 – 7表现出对抗 Ca v 3.2 通道的效力,其中两个比其母体分子更活跃。体内实验的结果是,化合物3和4在乙酸诱导的扭体试验中均显示出显着减少的扭体。分子模型研究已经确定了 Ca v 3.2 结合的可能机制。此外,还初步研究了结构与活性之间的关系。我们的结果表明化合物3和4可以在新型镇痛药的发现和开发中发挥重要作用。