Synthesis, crystal structures, spectroscopic characterization and in vitro evaluation of the 4-sulfono-3-methoxycinnamaldehydes as potential α-glucosidase and/or α-amylase inhibitors
作者:Terrinne P. Mokoena、Marole M. Maluleka、Richard M. Mampa、Malose J. Mphahlele、Bernice A. Monchusi
DOI:10.1016/j.molstruc.2022.134119
日期:2023.1
crystal lattices of these compounds. Their potential to inhibit α-glucosidase and/or α-amylase activities were evaluated through enzymatic assays in vitro complemented with molecular docking studies. 4-(Methoxyphenyl)sulfono-3-methoxycinnamaldehyde (2d) exhibited increased inhibitory effect against α-glucosidase (IC50 = 0.68 ± 1.36 µM) and α-amylase (IC50 = 22.99 ± 0.45 µM) compared to substrate 1 (IC50 = 1
4-sulfono-3-methoxycinnamaldehyde 衍生物2a - e由 4-hydroxy-3-methoxycinnamaldehyde 1与烷基或苯基磺酰氯磺化合成。单晶 X 射线衍射 (XRD) 和1 H NMR 光谱技术都提供了这些分子结构的 α,β-不饱和羰基臂的反式立体化学的证据。XRD方法证实反式异构体仅以固态存在。另一方面,NOESY 实验证实了在溶液相中还存在具有顺式烯基部分和反式的构象异构体醛基的取向。这一观察得到了密度泛函理论研究的证实,该研究预测了气相中顺式和反式异构体的共存。Hirshfeld 表面和 2D 指纹图用于了解导致这些化合物晶格中分子堆积的分子间相互作用。它们抑制α-葡萄糖苷酶和/或α-淀粉酶活性的潜力通过体外酶测定和分子对接研究进行了评估。4-(Methoxyphenyl)sulfono-3-methoxycinnamaldehyde