Copper-catalyzed oxidative cleavage of Passerini and Ugi adducts in basic medium yielding α-ketoamides
作者:Anirban Ghoshal、Mayur D. Ambule、Revoju Sravanthi、Mohit Taneja、Ajay Kumar Srivastava
DOI:10.1039/c9nj03533h
日期:——
oxidative cleavage of Passerini and Ugi adducts in the presence of base and copper(I) iodide is studied in detail. The oxidative cleavage yields α-ketoamides along with acids and amides from Passerini and Ugi adducts respectively. Mechanistic investigations revealed that the reaction proceeds via a radical pathway involving molecular oxygen. Control experiments with 18O-labeled Passerini adducts confirmed
[EN] HEPATITIS B ANTIVIRAL AGENTS<br/>[FR] AGENTS ANTIVIRAUX DE L'HÉPATITE B
申请人:ENANTA PHARM INC
公开号:WO2017015451A1
公开(公告)日:2017-01-26
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: X-A1-Y-A2-Z-L-R (I) which inhibit the protein(s) encoded by hepatitis B virus (HBV) or interfere with the function of the HBV life cycle of the hepatitis B virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV infection. The invention also relates to methods of treating an HBV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
N-Phenylbenzamide derivatives as alternative oxidase inhibitors: Synthesis, molecular properties, 1H-STD NMR, and QSAR
作者:Paulo C.S. Costa、Mario R.O. Barsottini、Maria L.L. Vieira、Bárbara A. Pires、Joel S. Evangelista、Ana C.M. Zeri、Andrey F.Z. Nascimento、Jaqueline S. Silva、Marcelo F. Carazzolle、Gonçalo A.G. Pereira、Maurício L. Sforça、Paulo C.M.L. Miranda、Silvana A. Rocco
DOI:10.1016/j.molstruc.2020.127903
日期:2020.5
DRX and 1H-NMR-STD. Single crystal X-ray diffraction showed intra- and intermolecular interactions of 3FH in solid-state and elucidated its 3D structural configuration. 1H-NMR-STD allowed us to derive protein-ligandinteractions in a membrane-mimetic system and evidenced an outstanding interaction of 3FH with this enzyme. Results of both biological assays were used as input to Quantitative Structure-Activity
chemical structures are rather complex. This study investigated the simplification of these naturalproducts by structure-based drug design, synthesis, and biological evaluation. We developed a simplified rigid scaffold with an arylalkyne moiety, which shows sub-micromolar MraY inhibitory activity. The scaffold is suitable for further investigating the structure–activity relationship by virtue of our
<i>para</i>-Selective copper-catalyzed C(sp<sup>2</sup>)–H amidation/dimerization of anilides <i>via</i> a radical pathway
作者:Amol B. Viveki、Dnyaneshwar N. Garad、Rajesh G. Gonnade、Santosh B. Mhaske
DOI:10.1039/c9cc09824k
日期:——
Copper-catalyzed amidation/dimerization of anilides via regioselective C(sp2)-H functionalization is achieved. The para-selective amidation is accomplished on the anilide aromaticringvia a radicalpathway leading to C-N bond formation in the presence of ammonium persulfate as a radical source/oxidant for the copper catalyst. The developed protocol tolerates a wide range of anilide substrates. The