Atorvastatin, an HMG-COA reductase inhibitor and effective lipid-regulating agent. Part III. Syntheses of [2H5]-, [13C8], and [13C7,15N]atorvastatin and their application in metabolic and pharmacokinetic studies
Efficient synthesis of 2H & 13C labeled benzaldehydes via regio-selective formylation
作者:Sobhana B. Boga、Abdul B. Alhassan、David Hesk
DOI:10.1016/j.tetlet.2014.06.053
日期:2014.8
for the synthesis of natural products and pharmaceutical drugs. Herein we report a general synthetic methodology for the synthesis of highly functionalized 2H and 13Clabeled benzaldehydes in transfer of isotopic purity >99% via regio-selective formylation. Regio-selective deprotonation of substituted benzene 1 with LDA/n-BuLi at −78 °C and treatment with DMF-d7 or EtO-13CHO led to the synthesis of 2-deutero-1
苯甲醛是合成有机化学中的重要基石,在合成天然产物和药物方面具有广泛的应用。本文中,我们报告了通过区域选择性甲酰化,以高于99%的同位素纯度转移合成高度官能化的2 H和13 C标记的苯甲醛的一般合成方法。在-78°C下用LDA / n -BuLi对取代的苯1进行区域选择性去质子化,并用DMF- d 7或EtO- 13处理CHO导致以中等至良好的产率合成了2-氘1,3-二取代的苯甲醛2/4。所描述的合成方法代表了一种简单而通用的途径,用于官能化的甲酰氘化,tri化的13 C和14 C标记的苯甲醛。