Bidentate Chiral Bis(imidazolium)‐Based Halogen‐Bond Donors: Synthesis and Applications in Enantioselective Recognition and Catalysis
作者:Revannath L. Sutar、Elric Engelage、Raphael Stoll、Stefan M. Huber
DOI:10.1002/anie.201915931
日期:2020.4.20
donor with both enantiomers and indicate that the chiral recognition is based on a different spatial orientation of the Lewis bases in the halogen-bonded complexes. In addition, moderate enantioselectivity is achieved in a Mukaiyama aldolreaction with a preorganized variant of the chiral halogen-bond donor. This represents the first case in which asymmetric induction was realized with a pure halogen-bond
Resolution of (4RS,5RS)-4,5-diphenylimidazolidine-2-thione using pentafluorophenyl active esters
作者:Anna Andreou、Najla Al Shaye、Hannah Brown、Jason Eames
DOI:10.1016/j.tetlet.2010.10.157
日期:2010.12
(4RS,5RS)-4,5-Diphenylimidazolidine-2-thione is resolved efficiently by treatment with NaHMDS and an enantiomerically pure pentafluorophenyl active ester. The levels of diastereocontrol were excellent (up to 90% de). (C) 2010 Elsevier Ltd. All rights reserved.
An enantioselective borane-mediated deacylation of C2-symmetrical 1,3-diacetyl-2-imidazolidinethiones, catalyzed by oxazaborolidines derived in situ from an aminoalcohol 2 and borane, provides a promising process for highly effective kinetic resolution.
[EN] CYCLIC ISOTHIOUREA DERIVATIVES AS CXCR4 MODULATORS<br/>[FR] DÉRIVÉS D'ISOTHIO-URÉE CYCLIQUES UTILISÉS COMME MODULATEURS DU CXCR4
申请人:ERMIUM THERAPEUTICS
公开号:WO2022064075A1
公开(公告)日:2022-03-31
The present invention provides novel compounds of formula (I) and pharmaceutical compositions containing these compounds. The compounds of formula (I) can act as CXCR4 modulators that specifically target the CXCR4 minor pocket, and they have further been found to inhibit the production of inflammatory cytokines in immune cells, which renders these compounds highly advantageous for use in therapy, particularly in the treatment or prevention of an inflammatory disorder, an autoimmune disorder, an autoinflammatory disorder, or an interferonopathy, such as, e.g., systemic lupus erythematosus, dermatomyositis or rheumatoid arthritis.
2,4,5-Trisubstituted imidazolines and pharmaceutical compositions
申请人:Ciba-Geigy Corporation
公开号:US04308277A1
公开(公告)日:1981-12-29
Compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are substituted or unsubstituted aryl or hetero-aryl groups, R.sub.3 is hydrogen or lower alkyl and R.sub.4 is a substituted or unsubstituted aliphatic hydrocarbon radical, and their pharmaceutically usable salts. These compounds possess immunoregulatory, antithrombotic and antiinflammatory properties and can be used as active ingredients in medicaments. They are prepared, for example, by reacting compounds of the formulae ##STR2## in which one of the radicals X and Y is mercapto, which can be in the form of a salt, and the other is a radical replaceable by etherified mercapto, with one another.