Dynamic kinetic resolution in the stereoselective synthesis of 4,5-diaryl cyclic sulfamidates by using chiral rhodium-catalyzed asymmetric transfer hydrogenation
作者:Juae Han、Soyeong Kang、Hyeon-Kyu Lee
DOI:10.1039/c0cc05289b
日期:——
The dynamic kinetic resolution of 4,5-diaryl cyclic sulfamidate imines was achieved via asymmetric transfer hydrogenation using a HCO(2)H/Et(3)N mixture as the hydrogen source and chiral Rh catalysts (R,R)- or (S,S)-RhCl(TsDPEN)Cp* affording the corresponding cyclic sulfamidates in good yields with up to >20 : 1 dr and up to >99% ee.
[EN] COMPOUNDS AND USES THEREOF IN THE TREATMENT OF CANCERS AND OTHER MEDICAL CONDITIONS<br/>[FR] COMPOSÉS ET LEURS UTILISATIONS DANS LE TRAITEMENT DE CANCERS ET D'AUTRES ÉTATS MÉDICAUX
申请人:THE ROYAL INST FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIV
公开号:WO2017011920A1
公开(公告)日:2017-01-26
There are provided compounds, their preparation and their use in the treatment of medical conditions including cancers and immune disorders.
提供了化合物,它们的制备以及它们在治疗包括癌症和免疫紊乱在内的医疗状况中的用途。
Nonprostanoid prostacyclin mimetics. 3. Structural variations of the diphenyl heterocycle moiety
作者:Nicholas A. Meanwell、Michael J. Rosenfeld、Ashok K. Trehan、Jeffrey L. Romine、J. J. Kim Wright、Catherine L. Brassard、John O. Buchanan、Marianne E. Federici、J. Stuart Fleming、Marianne Gamberdella、George B. Zavoico、Steven M. Seiler
DOI:10.1021/jm00097a007
日期:1992.9
4,5-Diphenyl-2-oxazolenonanoic acid (2) and 2-[3-[2-(4,5-diphenyl-2-oxazolyl)ethyl]phenoxy]acetic acid (3) were previously identified as nonprostanoid prostacyclin (PGI2) mimetics that inhibit ADP-induced aggregation of human platelets in vitro. The effects on biologicalactivity of substitution and structural modification of the 4- and 5-phenyl rings of 3 was examined. Potency showed a marked sensitivity
Acyl-CoA: cholesterol O-acyl transferase (ACAT) inhibitors. 1. 2-(Alkylthio)-4,5-diphenyl-1H-imidazoles as potent inhibitors of ACAT
作者:Neil V. Harris、Andrew W. Bridge、Raymond C. Bush、Edward C. J. Coffee、Donald I. Dron、Mark F. Harper、Michael J. Ashton、David J. Lythgoe、Christopher Smith
DOI:10.1021/jm00101a016
日期:1992.11
potent, bioavailable ACAT inhibitor may have beneficial effects in the treatment of atherosclerosis by (i) reducing the absorption of dietary cholesterol, (ii) reducing the secretion of very low density lipoproteins into plasma from the liver, and (iii) preventing the transformation of arterial macrophages into foam cells. We have found that a mevalonate derivative 2, which contains a 4,5-diphenyl-1H-imidazol-2-yl
catalyst-free direct aerobic oxidative annulation reaction of 2-aminobenzylic amines and α-hydroxy ketones efficiently afforded versatile 5H-1,4-benzodiazepine derivatives by employing air as economic and green oxidant under mild conditions. Interestingly, solvent was found to be crucial to the reaction, so that by using acetic acid as the best solvent an efficient and practical method could be achieved, requiring
2- aminobenzylic胺和α的不含催化剂的直接氧化好氧环反应-羟基酮有效地得到多功能5 ħ通过采用空气作为在温和条件下经济和绿色氧化剂-1,4-苯并二氮杂衍生物。有趣的是,发现溶剂对反应至关重要,因此通过使用乙酸作为最佳溶剂,可以实现一种高效实用的方法,完全不需要催化剂或添加剂。此方法容许广泛2-aminobenzylic胺和α的-羟基酮,并且可以放大到多克合成,并在药学上有活性的一步法合成直接施加N-去甲基美西泮衍生物,揭示了这种新方法在合成 5 H -1,4-苯二氮卓类药物和化学品中的潜力。