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Biocatalytic synthesis of planar chiral macrocycles
Science ( IF 44.7 ) Pub Date : 2020-02-20 , DOI: 10.1126/science.aaz7381
Christina Gagnon 1 , Éric Godin 1 , Clémentine Minozzi 1 , Johann Sosoe 1 , Corentin Pochet 1 , Shawn K Collins 1
Affiliation  

Enzymes lock in planar chirality Molecules with very large rings—macrocycles—are often conformationally constrained, and some exhibit planar chirality when substituents of the ring cannot rotate freely. Restricted rotation is generally valued in macrocycles because it can hold the molecule in functional conformations. Using a well-established lipase enzyme, Gagnon et al. developed a synthesis of planar chiral macrocycles with handles that can be easily functionalized. Computational docking suggests how using an enzyme as the catalyst for sequential acylation reactions can impart the observed stereochemistry. Science, this issue p. 917 An enzymatic synthesis for macrocycle building blocks locks in planar chirality. Macrocycles can restrict the rotation of substituents through steric repulsions, locking in conformations that provide or enhance the activities of pharmaceuticals, agrochemicals, aroma chemicals, and materials. In many cases, the arrangement of substituents in the macrocycle imparts an element of planar chirality. The difficulty in predicting when planar chirality will arise, as well as the limited number of synthetic methods to impart selectivity, have led to planar chirality being regarded as an irritant. We report a strategy for enantio- and atroposelective biocatalytic synthesis of planar chiral macrocycles. The macrocycles can be formed with high enantioselectivity from simple building blocks and are decorated with functionality that allows one to further modify the macrocycles with diverse structural features.

中文翻译:

平面手性大环化合物的生物催化合成

酶锁定平面手性具有非常大的环(大环)的分子通常在构象上受到限制,当环的取代基不能自由旋转时,有些会表现出平面手性。受限旋转通常在大环中受到重视,因为它可以将分子保持在功能构象中。Gagnon 等人使用成熟的脂肪酶。开发了一种具有易于功能化的手柄的平面手性大环化合物的合成。计算对接表明如何使用酶作为连续酰化反应的催化剂可以赋予观察到的立体化学。科学,这个问题 p。917 大环结构单元的酶促合成锁定平面手性。大环可以通过空间排斥限制取代基的旋转,锁定提供或增强药物、农用化学品、芳香化学品和材料活性的构象。在许多情况下,大环中取代基的排列赋予了平面手性元素。难以预测何时会出现平面手性,以及赋予选择性的合成方法数量有限,导致平面手性被视为一种刺激物。我们报告了一种平面手性大环化合物的对映选择性生物催化合成策略。大环可以从简单的构建块以高对映选择性形成,并装饰有允许进一步修饰具有不同结构特征的大环的功能。大环中取代基的排列赋予了平面手性元素。难以预测何时会出现平面手性,以及赋予选择性的合成方法数量有限,导致平面手性被视为一种刺激物。我们报告了一种平面手性大环化合物的对映选择性生物催化合成策略。大环可以从简单的构建块以高对映选择性形成,并装饰有允许进一步修饰具有不同结构特征的大环的功能。大环中取代基的排列赋予了平面手性元素。难以预测何时会出现平面手性,以及赋予选择性的合成方法数量有限,导致平面手性被视为一种刺激物。我们报告了一种平面手性大环化合物的对映选择性生物催化合成策略。大环可以从简单的构建块以高对映选择性形成,并装饰有允许进一步修饰具有不同结构特征的大环的功能。导致平面手性被视为刺激物。我们报告了一种平面手性大环化合物的对映选择性生物催化合成策略。大环可以从简单的构建块以高对映选择性形成,并装饰有允许进一步修饰具有不同结构特征的大环的功能。导致平面手性被视为刺激物。我们报告了平面手性大环化合物的对映选择性生物催化合成策略。大环可以从简单的构建块以高对映选择性形成,并装饰有允许进一步修饰具有不同结构特征的大环的功能。
更新日期:2020-02-20
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