作者:Orestis Tsikouris、Tomáš Bartl、Jaromír Toušek、Nikolaos Lougiakis、Tony Tite、Panagiotis Marakos、Nicole Pouli、Emmanuel Mikros、Radek Marek
DOI:10.1002/mrc.2226
日期:2008.7
4‐c]pyridine derivatives. Six compounds were fully characterized by using 1H, 13C, and 15N chemical shifts and indirect 1H13C and 1H15N coupling constants. The 1H NMR spectra were measured over a broad range of temperatures. All of the compounds were shown to exist predominantly in the N1‐H tautomeric form. Complementary quantum‐chemical calculations of the chemical shieldings and indirect spin‐spin couplings
取代的吡唑并吡啶是磷酸二酯酶和细胞周期蛋白依赖性激酶的有效抑制剂。在本研究中,NMR 用于研究 5-取代的吡唑并[3,4-c]吡啶衍生物的潜在 N1-H 和 N2-H 互变异构现象。通过使用 1H、13C 和 15N 化学位移以及间接 1H13C 和 1H15N 偶联常数,对六种化合物进行了全面表征。1H NMR 光谱是在很宽的温度范围内测量的。所有化合物均显示主要以 N1-H 互变异构形式存在。化学屏蔽和间接自旋-自旋耦合的互补量子化学计算支持得出的结构结论。版权所有 © 2008 John Wiley & Sons, Ltd.