Synthesis and cross-coupling reactions of imidomethyltrifluoroborates with aryl chlorides
摘要:
Potassium imidomethyltrifluoroborate salts were efficiently synthesized. Potassium phthalimidomethyltrifluoroborate was successfully used in Suzuki-Miyaura-like cross-coupling reactions with a variety of aryl chlorides. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] COMPOSITIONS FOR PROMOTING READTHROUGH OF PREMATURE TERMINATION CODONS, AND METHODS OF USING THE SAME<br/>[FR] COMPOSITIONS PERMETTANT DE FAVORISER LA TRANSLECTURE DE CODONS DE TERMINAISON PRÉMATURÉE, ET LEURS PROCÉDÉS D'UTILISATION
申请人:THE CENTRE FOR DRUG RES AND DEV
公开号:WO2017049409A1
公开(公告)日:2017-03-30
Disclosed are compounds of general formula (I) that promote readthrough of a premature termination codon (PTC) of an RNA molecule in a translation system, and their use, alone or in combination with other compounds, such as aminoglycoside, to treat diseases or disorders ameliorated by modulation of a premature termination codon (PTC) of an RNA molecule in a translation system. The disorder or disease may be Dystrophic epidermolysis bullosa, Batten disease, Duchenne muscular dystrophy, cancer, and spinal muscular atrophy. Ar-L-B (I)
Influence of
<i>N</i>
‐Substitution in 3‐Alkyl‐3‐hydroxyisoindolin‐1‐ones on the Stereoselectivity of Brønsted Acid‐Catalyzed Synthesis of 3‐Methyleneisoindolin‐1‐ones
作者:Nikola Topolovčan、Filip Duplić、Matija Gredičak
DOI:10.1002/ejoc.202100400
日期:2021.7.26
Brønsted acid-catalyzed dehydration of 3-alkyl-3-hydroxyisoindolin-1-ones is discussed. The reaction is efficiently catalyzed by methanesulfonic acid in acetonitrile and provides the corresponding 3-methyleneisoindolin-1-ones. The E/Z stereochemistry around the exocyclic double bond is in strong correlation with the size of the N-substituent. Selective formation of only one stereoisomer can be controlled
Chemoselective and Regioselective Synthesis of Spiroisoindolinone Indenes via an Intercepted Meyer–Schuster Rearrangement/Intramolecular Friedel–Crafts Alkylation Relay
rapidly with a broad range of substrates to generate spiroindenes chemoselectively and regioselectively in moderate to high yields. Key to the success of this transformation is an intercepted Meyer–Schuster rearrangement/intramolecular Friedel–Crafts alkylation relay that offers a modular approach in the synthesis of target compounds.
Benzylphthalimide analogs (P1P's) and phenethylphthalimide analogs (P2P's) have been found to exhibit thalidomide-like activity on the production of tumor necrosis factor (TNF)-α by the human leukemia cell line, HL-60, stimulated by 12-O-tetradecanoylphorbol-13-acetate (TPA). Structure-activity relationships are discussed on the basis of the TNF-α production-enhancing activity. Benzylphthalimide (P1P-00) exhibited activity which is weaker than that of thalidomide, but introduction of a methyl group at the ortho-position of the benzyl moiety (P1P-10) resulted an increase to a level comparable with that of thalidomide. Phenethylphthalimide (P2P-00) is more potent than thalidomide, and its fluorinated derivative, 2-phenethyl-4, 5, 6, 7-tetrafluoro-1H-isoindole-1, 3-dione (FP2P-00), exhibited potent activity at very low concentrations.