Highly chemoselective synthesis of dimeric 2-oxindoles with a C-3/C-5′ linkage via Friedel–Crafts alkylations of 2-oxindoles with 3-hydroxy-2-oxindoles
[EN] 3-3-DI-SUBSTITUTED-OXINDOLES AS INHIBITORS OF TRANSLATION INITIATION<br/>[FR] OXINDOLES 3,3-DI-SUBSTITUÉS EN TANT QU'INHIBITEURS DE L'INITIATION DE LA TRADUCTION
申请人:HARVARD COLLEGE
公开号:WO2014047437A1
公开(公告)日:2014-03-27
Compositions and methods for inhibiting translation are provided. Compositions, methods and kits for treating (1) cellular proliferative disorders, (2) non-proliferative, degenerative disorders, (3) viral infections, and/or (4) disorders associated with viral infections, using diaryloxindole compounds are described.
Friedel–Crafts alkylations of electron-rich aromatics with 3-hydroxy-2-oxindoles: scope and limitations
作者:Lakshmana K. Kinthada、Santanu Ghosh、K. Naresh Babu、Mohd. Sharique、Soumava Biswas、Alakesh Bisai
DOI:10.1039/c4ob01264j
日期:——
A Lewis acid-catalyzed nucleophilic addition of electron rich aromatics with 3-hydroxy-2-oxindoles 5 was developed. The reaction is believed to proceed through the 2H-indol-2-one ring system 9, which eventually reacts with various electron-rich aromatics to afford a variety of 2-oxindoles with an all-carbon quaternary center at the pseudobenzylic position (4, 8, 13, and 16) in high yields. The methodology provides an expeditious route to the tetracyclic core (3) of diazonamide (1), and azonazine (2) as well as the tricyclic core of asperazine (6a), idiospermuline (6b), and calycosidine (6c) viz. C(3a)-arylpyrroloindolines 7 having an all-carbon quaternary center on further synthetic elaboration.
FeCl<sub>3</sub>-Catalyzed Allylation Reactions onto 3-Hydroxy-2-oxindoles: Formal Total Syntheses of Bis-cyclotryptamine Alkaloids, (±)-Chimonanthine, and (±)-Folicanthine
作者:Lakshmana K. Kinthada、Sai Raghavendra Medisetty、Amarchand Parida、K. Naresh Babu、Alakesh Bisai
DOI:10.1021/acs.joc.7b01232
日期:2017.8.18
presents an efficient and concise access to the pyrroloindoline alkaloids (±)-deoxyeseroline (1a), (±)-esermethole (1b), (±)-physostigmine (1c), (±)-phenserine (1d), and (±)-physovenine (1e). Eventually, we extrapolated the scope of this methodology to the formal total syntheses of dimeric cyclotyrptamine alkaloids (±)-chimonanthine (3a), (±)-folicanthine (3c), and (±)-calycanthine (4).
Acid-catalyzed reactions of 3-hydroxy-2-oxindoles with electron-rich substrates: synthesis of 2-oxindoles with all-carbon quaternary center
作者:Lakshmana K. Kinthada、Santanu Ghosh、Subhadip De、Subhajit Bhunia、Dhananjay Dey、Alakesh Bisai
DOI:10.1039/c3ob41482e
日期:——
A Lewis acid catalyzed reaction of in situ generated 2H-indol-2-one (9) with various 2π and other electron-rich substrates has been developed. A variety of electron-rich substrates such as allyl/methallyltrimethylsilane, phenylacetylene, styrenes, acetophenone, and indoles have been used. The methodology provides a straightforward approach for the synthesis of 2-oxindoles with an all-carbon quaternary center at the pseudobenzylic position.
3-3-Di-Substituted-Oxindoles as Inhibitors of Translation Initiation
申请人:President and Fellows of Harvard College
公开号:US20160106711A1
公开(公告)日:2016-04-21
Compositions and methods for inhibiting translation are provided. Compositions, methods and kits for treating (1) cellular proliferative disorders, (2) non-proliferative, degenerative disorders, (3) viral infections, and/or (4) disorders associated with viral infections, using diaryloxindole compounds are described.