Semi-syntheses and interrogation of indole-substituted Aspidosperma terpenoid alkaloids.

Semi-syntheses and interrogation of indole-substituted Aspidosperma terpenoid alkaloids.
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DOI:
10.1039/d2ob00610c
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发表时间:
2022-05-18
影响因子:
3.2
通讯作者:
--
中科院分区:
化学3区
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我们在这里证明了一系列的Aspidosperma萜类生物碱可以快速制备使用半合成从天然来源的tabersonine,具有多个基于氧的取代基的吲哚环上,如羟基和甲氧基。这组复杂化合物使得能够探索吲哚修饰以优化吲哚生物碱的抗癌活性,产生先导化合物(例如,具有C15-羟基、C16-甲氧基和/或C17-甲氧基衍生化),其在个位数微摩尔范围内有效抑制癌细胞系生长。这些结果有助于指导盾籽萜类生物碱治疗药物的开发。此外,这种合成方法的特点是在复杂的天然产物分子上进行后期容易的衍生化,为未来的药物化学和化学生物学发现提供了一种具有不同化学功能的生物碱家族的吲哚衍生化的通用途径。
We demonstrated here a series of Aspidosperma terpenoid alkaloids can be quickly prepared using semisynthesis from naturally sourced tabersonine, featuring multiple oxygen-based substituents on the indole ring such as hydroxy and methoxy groups. This panel of complex compounds enabled the exploration of indole modifications to optimize the indole alkaloids’ anticancer activity, generating lead compounds (e.g., with C15-hydroxy, C16-methoxy, and/or C17-methoxy derivatizations) that potently inhibit cancer cell line growth in the single-digit micromolar range. These results can help guide the development of Aspidosperma terpenoid alkaloid therapeutics. Furthermore, this synthetic approach features late-stage facile derivatization on complex natural product molecules, providing a versatile path to indole derivatization of this family of alkaloids with diverse chemical functionalities for future medicinal chemistry and chemical biology discoveries.
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