Improving physical properties via C-H oxidation: chemical and enzymatic approaches.

Improving physical properties via C-H oxidation: chemical and enzymatic approaches.
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DOI:
10.1002/anie.201407016
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发表时间:
2014-11-03
影响因子:
16.6
通讯作者:
Baran, Phil S.
Baran, Phil S.
中科院分区:
化学1区
文献类型:
--
作者:
Michaudel, Quentin;Journot, Guillaume;Regueiro-Ren, Alicia;Goswami, Animesh;Guo, Zhiwei;Tully, Thomas P.;Zou, Lufeng;Ramabhadran, Raghunath O.;Houk, Kendall N.;Baran, Phil S.

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物理化学性质是候选药物成功的关键因素。虽然有许多策略可以改善小杂环型先导化合物的物理化学性质,但由于缺乏官能团,复杂的碳氢骨架更难进行衍生化。人们已经探索了各种C-H氧化方法来改善这种生物活性很强,但水溶性很差的天然产物的溶解性。利用分子与生俱来的反应性,以及核心上存在的少数分子手柄,允许在五环结构的不同位置进行氧化。酶催化氧化提供了几种与化学方法正交的氧化反应。溶解度测量表明,许多合成的化合物都有增强作用。
Physicochemical properties constitute a key factor for the success of a drug candidate. Whereas many strategies to improve the physicochemical properties of small heterocycle-type leads exist, complex hydrocarbon skeletons are more challenging to derivatize due to the absence of functional groups. A variety of C–H oxidation methods have been explored on the betulin skeleton to improve the solubility of this very bioactive, yet poorly water soluble, natural product. Capitalizing on the innate reactivity of the molecule, as well as the few molecular handles present on the core, allowed for oxidations at different positions across the pentacyclic structure. Enzymatic oxidations afforded several orthogonal oxidations to chemical methods. Solubility measurements showed an enhancement for many of the synthesized compounds.
固有的和引导的 C-H 功能化逻辑。
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