Synthesis and Biological Evaluation of New 1,2-Dihydro-4-hydroxy-2-oxo-3-quinolinecarboxamides for Treatment of Autoimmune Disorders: Structure−Activity Relationship
摘要:
Roquinimex-related 3-quinolinecarboxamide derivatives were prepared and evaluated for treatment of autoimmune disorders. The compounds were tested in mice for their inhibitory effects on disease development in the acute experimental autoimmune encephalomyelitis model and selected compounds in the beagle dog for induction of proinflammatory reaction. Structure-activity relationships are discussed. Compound 8c, laquinimod, showed improved potency and superior toxicological profile compared to the lead compound roquinimex (1b, Linomide) and was selected for clinical studies (currently in phase II).
Synthesis of Ring-Fused, N-Substituted 4-Quinolinones Using p<i>K</i><sub>a</sub>-Guided, Base-Promoted Annulations with Isatoic Anhydrides: Total Synthesis of Penicinotam
作者:Muhammad M. Khalifa、Satish Chandra Philkhana、Jennifer E. Golden
DOI:10.1021/acs.joc.9b02541
日期:2020.1.17
deprotonation susceptibility, such as tetramic and tetronic acids, cyclic 1,3-diketones, and cycloalkanones. Application to the synthesis of bioactive, pyrrolizine-fused 4-quinolinone, penicinotam 3, resulted in the most brief and highest yielding totalsynthesis of the alkaloid in three steps and a 36% overall yield.
Discovery of evodiamine derivatives as potent insecticide candidates
作者:Jingbo Liu、Yabing Shi、Shuting Chen、Fengyun Li、Wen Wen、Yuanhong Wang
DOI:10.1016/j.bmc.2022.116727
日期:2022.5
search for novel more effective insecticides, natural products could be used as ideal template compounds due to their good environmental compatibility, various bioactivities, unique scaffolds and mode of action. We have found that natural product evodiamine, the main active component from the fruits of Evodia rutaecarpa (Juss.) Benth, displayed obvious insecticidal activities against lepidoptera pests
1,3-Dipolar Cycloaddition−Decarboxylation Reactions of an Azomethine Ylide with Isatoic Anhydrides: Formation of Novel Benzodiazepinones
作者:Nadia Spiccia、Jose Basutto、Pawel Jokisz、Leon S.-M. Wong、Adam G. Meyer、Andrew B. Holmes、Jonathan M. White、John H. Ryan
DOI:10.1021/ol102824k
日期:2011.2.4
substituted isatoicanhydrides to afford novel 1,3-benzodiazepin-5-one derivatives, which are generally isolated in high yield. The transformations involve 1,3-dipolar cycloaddition reactions of the ylide with the anhydrides to give transient, and in a representative case spectroscopically observable, oxazolidine intermediates that undergo ring-opening−decarboxylation−ring-closing reaction cascades to
Palladium-Catalyzed Multistep Tandem Carbonylation/N-Dealkylation/Carbonylation Reaction: Access to Isatoic Anhydrides
作者:Shoucai Wang、Xuan Li、Jiawang Zang、Meichen Liu、Siyu Zhang、Guangbin Jiang、Fanghua Ji
DOI:10.1021/acs.joc.9b02771
日期:2020.2.21
A novel and efficient synthesis of isatoicanhydride derivatives was developed via palladium-catalyzed multistep tandem carbonylation/N-dealkylation/carbonylation reaction with alkyl as the leaving group and tertiary anilines as nitrogen nucleophiles. This approach features good functional group compatibility and readily available starting materials. Furthermore, it provided a convenient approach for
2<i>H</i>-Azirines as C–C Annulation Reagents in Cu-Catalyzed Synthesis of Furo[3,2-<i>c</i>]quinolone Derivatives
作者:Pavel A. Sakharov、Nikolai V. Rostovskii、Alexander F. Khlebnikov、Taras L. Panikorovskii、Mikhail S. Novikov
DOI:10.1021/acs.orglett.9b01043
日期:2019.5.17
A method of furo-annulation of 4-hydroxy-2-oxoquinoline-3-carboxylates with 3-arylazirines under Cu(II) catalysis was developed to synthesize a variety of 2,3-dihydrofuro[3,2-c]quinolones bearing a carbamate group at the C2 position. The reaction involves an azirine ring opening across the N–C2 bond and formation of a dihydrofuran ring with the inclusion of two azirine carbon atoms, accompanied by
开发了一种在Cu(II)催化下用3-芳基叠氮碱对4-羟基-2-氧代喹啉-3-羧酸酯进行呋喃环化反应的方法,合成了各种带有2-α-二氢呋喃[3,2- c ]喹诺酮的化合物。氨基甲酸酯基团位于C2位置。该反应涉及一个跨越N-C2键的叠氮基环,并形成二氢呋喃环,其中包含两个叠氮基碳原子,同时伴随着酯基向氮原子的转移。发现的反应是使用2 H-叠氮基进行呋喃环化反应的第一个例子。