Synthesis and Antiviral Activity of New Derivatives of Rupestonic Acid
作者:L. Chen、M. Obul、Kh. Bozorov、J. Zhao
DOI:10.1007/s10600-021-03497-6
日期:2021.9
A series of 20 new derivatives of rupestonic acid were synthesized via Davis oxidation. Their antiviral activity against influenza A virus (H3N2) was established. Several of the synthesized compounds were shown to exhibit antiviral activity against influenza A virus. Compound 4d was shown to have the highest potential activity (R = α-methylcinnamyl acyl with IC50 14.37 μg/mL and TC50 80.13 μg/mL) against influenza A virus.
Photocatalyzed Intramolecular [2+2] Cycloaddition of
<i>N</i>
‐Alkyl‐
<i>N‐(</i>
2‐(1‐arylvinyl)aryl)cinnamamides
作者:Wanderson C. Souza、Bianca T. Matsuo、Priscilla M. Matos、José Tiago M. Correia、Marilia S. Santos、Burkhard König、Marcio W. Paixão
DOI:10.1002/chem.202003641
日期:2021.2.19
N‐Alkyl‐N‐(2‐(1‐arylvinyl)aryl)cinnamamides are converted into natural product inspired scaffolds via iridium photocatalyzed intramolecular [2+2] photocycloaddition. The protocol has a broad substrate scope, whilst operating under mild reaction conditions. Tethering four components forming a trisubstituted cyclobutane core builds rapidly high molecular complexity. Our approach allows the design and
N-烷基-N-( 2-(1-芳基乙烯基)芳基)肉桂酰胺通过铱光催化的分子内[2 + 2]光环加成反应转变为天然产物。该协议具有广泛的底物范围,同时在温和的反应条件下运行。束缚形成三取代的环丁烷核心的四个成分会迅速建立高分子复杂性。我们的方法允许设计和合成多种四氢环丁酮[ c ]喹啉-3(1 H)-酮,产率在20–99%之间,并且具有出色的区域选择性和非对映选择性。此外,已证明在环丁烷环断裂后,1,7-烯炔的分子内[2 + 2]-环加成反应会导致类似烯炔的复分解。
Direct Catalytic Asymmetric Synthesis of N-Heterocycles from Commodity Acid Chlorides by Employing α,β-Unsaturated Acylammonium Salts
作者:Sreekumar Vellalath、Khoi N. Van、Daniel Romo
DOI:10.1002/anie.201306050
日期:2013.12.16
Taming the beast, asymmetrically: Modulation of the reactivity of acidchlorides, using cinchona alkaloid catalysts, results in chiral α,β‐unsaturated acylammoniums, which react with nucleophiles enantioselectively to give pyrrolidinones, piperid‐2‐ones, and dihydropyridinones. This nucleophile‐catalyzed Michael/proton transfer/lactamization or lactonization organocascade leads to chiral intermediates
[EN] N-PYRROLIDINYL, N'-PYRAZOLYL- UREA, THIOUREA, GUANIDINE AND CYANOGUANIDINE COMPOUNDS AS TRKA KINASE INHIBITORS<br/>[FR] COMPOSÉS DE N-PYRROLIDINYLE, N'-PYRAZOLYL-URÉE, THIO-URÉE,GUANIDINE ET CYANOGUANIDINE EN TANT QU'INHIBITEURS DE LA KINASE TRKA
申请人:ARRAY BIOPHARMA INC
公开号:WO2014078323A1
公开(公告)日:2014-05-22
Compounds of Formula (I) or stereoisomers, tautomers, or pharmaceutically acceptable salts, or solvates or prodrugs thereof, where R1, R2, Ra, Rb, Rc, Rd, X, Ring B, and Ring C are as defined herein, and wherein Ring B and the NH-C(=X)-NH moiety are in the trans configuration, are inhibitors of TrkA kinase and are useful in the treatment of diseases which can be treated with a TrkA kinase inhibitor such as pain, cancer, inflammation/inflammatory diseases, neurodegenerative diseases, certain infectious diseases, Sjogren's syndrome, endometriosis, diabetic peripheral neuropathy, prostatitis or pelvic pain syndrome.
NOVEL PROCESSES FOR THE PREPARATION OF PHENYLCYCLOPROPYLAMINE DERIVATIVES AND USE THEREOF FOR PREPARING TICAGRELOR
申请人:Khile Anil Shahaji
公开号:US20130165696A1
公开(公告)日:2013-06-27
Provided herein are novel processes for the preparation of phenylcyclopropylamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Provided particularly herein are novel, commercially viable and industrially advantageous processes for the preparation of a substantially pure ticagrelor intermediate, trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine. Provided further herein are novel acid addition salts of trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine, and process for their preparation. The intermediate and its acid addition salts are useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof, in high yield and purity.