A novel series of C3-functionalized oxindoles, 3-(2-oxo-4-phenylbut-3-en-1-ylidene) indolin-2-ones as potential Pim-1 kinase inhibitors, were designed, synthesized and investigated for inhibition of human cancer-cell proliferation.
Photocatalyzed Csp<sup>3</sup>–Csp<sup>3</sup> cross-dehydrogenative coupling of <i>N</i>-Boc-tetrahydroisoquinolines with α,β-unsaturated ketones
作者:Na-Ri-Mei Ao、Xue-Qing Zhu、Chun-Xin Zhao、Ya-Ru Gao、Yong-Qiang Wang
DOI:10.1039/d1ob00527h
日期:——
A novel photocatalyzed cross-dehydrogenative coupling reaction of N-Boc-tetrahydroisoquinolines with α,β-unsaturatedketones has been developed. This research provides an easy access to a variety of C1-substituted tetrahydroisoquinolines, which can be further transformed into benzo[a]-quinolizine-2-ones, the skeletons of natural products with a wide range of biological activities. The load of the photocatalyst
开发了一种新型光催化N -Boc-四氢异喹啉与 α,β-不饱和酮的交叉脱氢偶联反应。这项研究提供了一种容易获得各种 C1 取代的四氢异喹啉的方法,这些四氢异喹啉可以进一步转化为具有广泛生物活性的天然产物骨架苯并[ a ]-quinolizine-2-ones。光催化剂的负载量低,氧化剂便宜且毒性较小。
Enantioselective NiH/Pmrox-Catalyzed 1,2-Reduction of α,β-Unsaturated Ketones
作者:Fenglin Chen、Yao Zhang、Lei Yu、Shaolin Zhu
DOI:10.1002/anie.201610990
日期:2017.2.13
presence of pinacolborane. This mild process represents a general method to access a wide variety of structurally diverse α‐chiral allylic alcohols in excellent yields and enantioselectivity, as well as very high levels of ambidoselectivity for 1,2‐ over 1,4‐reduction. Furthermore, for reactions on a 10 mmol scale, catalyst loadings as low as 0.5 mol % could be employed to deliver product without any
PPh<sub>3</sub>⋅HBr-DMSO Mediated Expedient Synthesis of γ-Substituted β,γ-Unsaturated α-Ketomethylthioesters and α-Bromo Enals: Application to the Synthesis of 2-Methylsulfanyl-3(<i>2 H</i>)-furanones
作者:Kanchan Mal、Abhinandan Sharma、Prakas R. Maulik、Indrajit Das
DOI:10.1002/chem.201303755
日期:2014.1.13
An efficient chemoselective general procedure for the synthesis of γ‐substituted β,γ‐unsaturatedα‐ketomethylthioesters from α,β‐unsaturatedketones has been achieved through an unprecedented PPh3⋅HBr‐DMSO mediated oxidative bromination and Kornblum oxidation sequence. The newly developed reagent system serves admirably for the synthesis of α‐bromoenals from enals. Furthermore, AuCl3‐catalyzed efficient
Dehydrozingerone Inspired Discovery of Potential Broad-Spectrum Fungicidal Agents as Ergosterol Biosynthesis Inhibitors
作者:Xiangmin Song、Xinyue Zhu、Ting Li、Cai Liang、Meng Zhang、Yu Shao、Jun Tao、Ranfeng Sun
DOI:10.1021/acs.jafc.9b04231
日期:2019.10.16
were synthesized, and their fungicidal activities and action mechanism against Colletotrichum musae were evaluated. The bioassay result showed that most compounds exhibited excellent fungicidal activity in vitro at 50 μg mL–1. Compounds 13, 16, 18, 19, and 27 exhibited broad-spectrum fungicidal activity; especially, compounds 19 and 27 were found to have more potent fungicidal activity than azoxystrobin