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PUBMED FOR HANDHELDS

Journal Abstract Search


336 related items for PubMed ID: 12520503

  • 1. Synthesis of 9-N-cinchona alkaloid peptide hybrid derivatives: preparation and conformational study of 9-N-acylamino(9-deoxy)cinchona alkaloids.
    Sundermeier U, Döbler C, Mehltretter GM, Baumann W, Beller M.
    Chirality; 2003 Feb; 15(2):127-34. PubMed ID: 12520503
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  • 3. An improved synthesis of 10,11-didehydro Cinchona alkaloids.
    Kacprzak KM, Lindner W, Maier NM.
    Chirality; 2008 Mar; 20(3-4):441-5. PubMed ID: 17853397
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  • 4. Gem-difluorination of aminoalkynes via highly reactive dicationic species in superacid HF-SbF5: application to the efficient synthesis of difluorinated cinchona alkaloid derivatives.
    Cantet AC, Carreyre H, Gesson JP, Jouannetaud MP, Renoux B.
    J Org Chem; 2008 Apr 04; 73(7):2875-8. PubMed ID: 18315004
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  • 7. Investigation on 1,4-dichlorophthalazine-derivatized cinchona alkaloids-catalyzed asymmetric "interrupted" Feist-Bénary reaction.
    Jin Y, Liu XY, Jing LL, He W, Sun XL, Zhang SY.
    Chirality; 2007 May 15; 19(5):386-90. PubMed ID: 17380487
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  • 9. 9-Amino-(9-deoxy)cinchona alkaloid-derived new chiral phase-transfer catalysts.
    Peng W, Wan J, Xie B, Ma X.
    Org Biomol Chem; 2014 Nov 07; 12(41):8336-45. PubMed ID: 25216100
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  • 10. An unusual electronic effect of an aromatic-F in phase-transfer catalysts derived from cinchona-alkaloid.
    Jew SS, Yoo MS, Jeong BS, Park IY, Park HG.
    Org Lett; 2002 Nov 28; 4(24):4245-8. PubMed ID: 12443069
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  • 11. Asymmetric aza-Mannich addition: synthesis of modified chiral 2-(ethylthio)-thiazolone derivatives with anticancer potency.
    Liu X, Deng L, Song H, Jia H, Wang R.
    Org Lett; 2011 Mar 18; 13(6):1494-7. PubMed ID: 21344918
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  • 12. Urea- and thiourea-substituted cinchona alkaloid derivatives as highly efficient bifunctional organocatalysts for the asymmetric addition of malonate to nitroalkenes: inversion of configuration at C9 dramatically improves catalyst performance.
    McCooey SH, Connon SJ.
    Angew Chem Int Ed Engl; 2005 Oct 07; 44(39):6367-70. PubMed ID: 16136619
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  • 14. Chiral base-catalyzed enantioselective synthesis of 4-aryloxyazetidinones and 3,4-benzo-5-oxacephams.
    Kozioł A, Furman B, Frelek J, Woźnica M, Altieri E, Chmielewski M.
    J Org Chem; 2009 Aug 07; 74(15):5687-90. PubMed ID: 19572576
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  • 15. Enantioselective synthesis of 3,4-dihydropyran-2-ones by domino Michael addition and lactonization with new asymmetric organocatalysts: cinchona-alkaloid-derived chiral quaternary ammonium phenoxides.
    Tozawa T, Nagao H, Yamane Y, Mukaiyama T.
    Chem Asian J; 2007 Jan 08; 2(1):123-34. PubMed ID: 17441145
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  • 17. Novel cinchona carbamate selectors with complementary enantioseparation characteristics for N-acylated amino acids.
    Krawinkler KH, Maier NM, Ungaro R, Sansone F, Casnati A, Lindner W.
    Chirality; 2003 Jan 08; 15 Suppl():S17-29. PubMed ID: 12884371
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  • 18. Role of the solvent in the adsorption-desorption equilibrium of cinchona alkaloids between solution and a platinum surface: correlations among solvent polarity, cinchona solubility, and catalytic performance.
    Ma Z, Zaera F.
    J Phys Chem B; 2005 Jan 13; 109(1):406-14. PubMed ID: 16851030
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  • 19. Preparation and conformational analysis of C-glycosyl beta(2)- and beta/beta(2)-peptides.
    Inaba Y, Kawakami T, Aimoto S, Ikegami T, Takeuchi T, Nakazawa T, Yano S, Mikata Y.
    Carbohydr Res; 2009 Mar 31; 344(5):613-26. PubMed ID: 19217080
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  • 20. Helically chiral ferrocene peptides containing 1'-aminoferrocene-1-carboxylic acid subunits as turn inducers.
    Barisić L, Cakić M, Mahmoud KA, Liu YN, Kraatz HB, Pritzkow H, Kirin SI, Metzler-Nolte N, Rapić V.
    Chemistry; 2006 Jun 23; 12(19):4965-80. PubMed ID: 16721886
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