<i>N</i>-Acylamino Saccharin as an Emerging Cysteine-Directed Covalent Warhead and Its Application in the Identification of Novel FBPase Inhibitors toward Glucose Reduction
structure of title compound W8 bound with FBPase unexpectedly revealed that the N-acylamino saccharin moiety worked as an electrophile warhead that covalently modified the noncatalytic C128 site in FBPase while releasing saccharin, suggesting a previously undiscovered covalent reaction mechanism of saccharinderivatives with cysteine. Treatment of title compound W8 displayed potent inhibition of glucose production
Aerobic Benzylic C(sp<sup>3</sup>)–H Bond Oxygenations Catalyzed by NBS under Visible Light Irradiation
作者:Taiqiang Ye、Yuzheng Li、Yanni Ma、Shenpeng Tan、Feng Li
DOI:10.1021/acs.joc.3c02284
日期:2024.1.5
An efficient photocatalytic oxidation of benzylic C(sp3)–H bonds to ketones, esters, and amides has been developed using NBS as a metal-free photocatalyst and O2 as an oxidant. A variety of synthetically and biologically valuable compounds are assembled in moderate to excellent yields. The synthetic utility of this approach has been demonstrated by gram-scale experiments. A possible free radical mechanism
Novel one-step synthesis of 2-carbonyl/thiocarbonyl isoindolinones and mechanistic disclosure on the rearrangement reaction of o-phthalaldehyde with amide/thioamide analogs
作者:Jieping Wan、Bin Wu、Yuanjiang Pan
DOI:10.1016/j.tet.2007.07.009
日期:2007.9
rearrangement reaction of o-phthalaldehyde with urea/thiourea analogs or amides/thioamides under the catalysis of TMSCl (trimethylchlorosilane) is described, whereby a series of 2-carbonyl isoindolinones and 2-thiocarbonyl isoindolinones are afforded. This is the first time that the N-carbonyl/thiocarbonyl isoindolinones are synthesized in a single step from o-phthalaldehyde. Similar reactions using primary
Indole-β-nucleophilic substitution. Part 9 nitrogen nucleophiles. Syntheses of hydroxycryptolepine, cryptolepine, and quindoline
作者:Melanie M. Cooper、James M. Lovell、John A. Joule
DOI:10.1016/0040-4039(96)00818-0
日期:1996.6
The alkaloids hydroxycryptolepine, cryptolepine and quindoline have been synthesised utilising the intramolecular β-nucleophilic substitution of a 1-phenylsulfonyl-2-acylindole.