犬尿氨酸是由犬尿氨酸氨基转移酶 (KAT) 催化转化的犬尿氨酸形成的色氨酸的神经保护代谢物。然而,其高脑水平与认知缺陷和精神分裂症的病理生理学有关。虽然已经发表了几类 KAT 抑制剂,但寻找新的抑制剂化学型对于寻找合适的临床候选药物的过程至关重要。因此,我们使用药效团建模和分子对接,预测杂环氨基酮衍生物作为犬尿氨酸氨基转移酶 II 的新潜在不可逆抑制剂。在 SAR 研究中合成了噻唑和基于三唑的氨基酮,并在体外评估了它们的抑制活性。观察到的活动证实了我们的计算模型,此外,50 = 0.097 µM。
犬尿氨酸是由犬尿氨酸氨基转移酶 (KAT) 催化转化的犬尿氨酸形成的色氨酸的神经保护代谢物。然而,其高脑水平与认知缺陷和精神分裂症的病理生理学有关。虽然已经发表了几类 KAT 抑制剂,但寻找新的抑制剂化学型对于寻找合适的临床候选药物的过程至关重要。因此,我们使用药效团建模和分子对接,预测杂环氨基酮衍生物作为犬尿氨酸氨基转移酶 II 的新潜在不可逆抑制剂。在 SAR 研究中合成了噻唑和基于三唑的氨基酮,并在体外评估了它们的抑制活性。观察到的活动证实了我们的计算模型,此外,50 = 0.097 µM。
Synthesis and herbicidal evaluation of novel benzothiazole derivatives as potential inhibitors of D1 protease
作者:Tonghui Huang、Jie Sun、Lin An、Lixian Zhang、Cuiping Han
DOI:10.1016/j.bmcl.2016.01.087
日期:2016.4
predicted to be an ideal herbicidal target. Three novel series of benzothiazole derivatives were synthesized and evaluated for their herbicidal activities against Brassica napus (rape) and Echinochloa crusgalli (barnyard grass). The preliminary bioassay indicated that most of the synthesized compounds possess promising D1 protease inhibitory activities and considerable herbicidal activities. Molecular
Enantiomeric purity determination by NMR: proving the purity of a single enantiomer
作者:Richard J. Lewis、Michael A. Bernstein、Hui-Fang Chang、David Chapman、Nils Pemberton
DOI:10.1016/j.tetasy.2013.05.014
日期:2013.7
The NMR spectra of separate samples of an analyte complexed with each enantiomer of a chiral solvating agent (CSA) give an accurate estimate of the chemical shifts of racemic analytes in the presence of a single enantiomer of the CSA. This effect allows a CSA-based chiral NMR method to be developed when only a single enantiomer of analyte is available. The ability to develop a method capable of discriminating between enantiomers in these circumstances is useful, for example, to resolve the question of whether racemization has occurred during the synthesis of a chiral molecule. (C) 2013 Elsevier Ltd. All rights reserved.