Structure–Activity Relationship for Small Molecule Inhibitors of Nicotinamide<i>N</i>-Methyltransferase
作者:Harshini Neelakantan、Hua-Yu Wang、Virginia Vance、Jonathan D. Hommel、Stanton F. McHardy、Stanley J. Watowich
DOI:10.1021/acs.jmedchem.7b00389
日期:2017.6.22
biotransforming enzyme that catalyzes the N-methylation of endogenous and exogenous xenobiotics. We have identified small molecule inhibitors of NNMT with >1000-fold range of activity and developed comprehensive structure–activityrelationships (SARs) for NNMT inhibitors. Screening of N-methylated quinolinium, isoquinolinium, pyrididium, and benzimidazolium/benzothiazolium analogues resulted in the
NaIO4-mediated sequential iodination/amidation reaction of N-alkyl quinolinium iodide salts has been first developed. This cascade process provides an efficient way to rapidly synthesize 3-iodo-N-alkyl quinolinones with high regioselectivity and good functional group tolerance. This protocol was also amenable to the isoquinolinium salts, thus providing a complementary method for preparing the 4-iodo-N-alkyl
Deprotonated Salicylaldehyde as Visible Light Photocatalyst
作者:Yan-Jun Zhuang、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.joc.0c00102
日期:2020.3.20
by the deprotonated salicylaldehyde through an energy-transfer pathway. Consequently, the C-C cleaving alkylation reactions of N-hydroxyphthalimide esters proceed smoothly in the presence of as low as 1 mol % of salicylaldehyde under the visible-light irradiation, affording desired alkylation products with up to 99% yields. Application in visible-light induced aerobic oxidation of N-alkylpyridinium
Synthesis of 4-Iodoisoquinolin-1(2<i>H</i>)-ones by a Dirhodium(II)-Catalyzed 1,4-Bisfunctionalization of Isoquinolinium Iodide Salts
作者:Zaixiang Fang、Yi Wang、Yuanhua Wang
DOI:10.1021/acs.orglett.8b03614
日期:2019.1.18
An efficient Rh2(II,II)-catalyzed reaction has been developed under mild conditions. This synthetic method proceeds through iodination/oxidation of readily available isoquinolinium iodide salts under aerobic conditions with good to excellent yields. 4-Iodoisoquinolin-1(2H)-ones are important building blocks for biologically and medicinally important compounds. The developed methodology was applied
Electrochemical regioselective selenylation/oxidation of <i>N</i>-alkylisoquinolinium salts <i>via</i> double C(sp<sup>2</sup>)–H bond functionalization
作者:Xiang Liu、Yajun Wang、Dan Song、Yuhan Wang、Hua Cao
DOI:10.1039/d0cc06778d
日期:——
An efficient, novel, and environmentally friendly electrochemical regioselective selenylation/oxidation of N-alkylisoquinolinium salts via double C(sp2)–H bond functionalization under undivided electrolytic conditions has been developed. A series of selenide isoquinolones were easily accessed through this sustainable and clean electrochemical system. The present protocol was further extended to afford
已开发了在不分开的电解条件下通过双C(sp 2)-H键官能化对N-烷基异喹啉鎓盐进行高效,新颖且环境友好的电化学区域选择性硒化/氧化的方法。通过这种可持续,清洁的电化学系统,很容易获得一系列硒化异喹诺酮。本方案进一步扩展为提供硒化物喹诺酮和1,3-二甲基-1 H-苯并[ d ]咪唑-2(3 H)-1。此外,抗病毒生物测定法表明化合物3j对烟草花叶病毒(TMV)表现出优异的抗病毒活性,其抑制率高达90%。