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Volumn 69, Issue 2, 2004, Pages 280-302

Novel Chimeric Scaffolds to Extend the Exploration of Receptor Space: Hybrid β-D-Glucose-Benzoheterodiazepine Structures for Broad Screening. Effect of Amide Alkylation on the Course of Cyclization Reactions

Author keywords

[No Author keywords available]

Indexed keywords

ALKYLATION; CONFORMATIONS; DIMERS; MOLECULAR DYNAMICS; NITROGEN COMPOUNDS; PROTEINS; SYNTHESIS (CHEMICAL);

EID: 0347763381     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo0352068     Document Type: Article
Times cited : (32)

References (58)
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  • 20
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    • Ph.D. Dissertation, University of Pennsylvania. We are indebted to Dr. Carl DeCicco, BristolMyers Squibb, for this information.
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    • note
    • Thus, the target of cortrisol is the glucocorticoid receptor, but it activates also the mineralocorticoid receptor. The reverse is true of aldosterone, which targets primarily the latter receptor. Interestingly, the manmade 1-dehydrocortisol (prednisolone) is more selective than cortisol.
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    • note
    • 2O).
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    • Hynes, J., Jr. Ph.D. Dissertation, University of Pennsylvania, 1996.
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    • note
    • We are indebted to Dr. Carl DeCicco, then at DuPont Pharmaceuticals, for helpful discussions.
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    • note
    • See the Supporting Information for more details.
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    • note
    • In addition to providing a diverse collection of compounds for broad screening, exploring the synthesis of mixed diacyl derivatives will address the important chemical question of stability to acyl migration.
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    • note
    • 2O) after 2 h.
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    • note
    • Under chemical ionization (CI) conditions, a molecular ion having the same mass-to-charge ratio as the desired product was observed. Under electrospray ionization (ESI) conditions, a molecular ion corresponding to dimer formation was observed under both positive and negative ionization conditions. Signals corresponding to dimerization of molecules in the mass spectrometer is not uncommon under ESI conditions.
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    • note
    • Details regarding the preparation of compound (+)-100 are presented in the Supporting Information.
  • 48
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    • note
    • Even under conditions of very high dilution (c = 0.001 N), only dimer formation was observed.
  • 49
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    • note
    • Monte Carlo conformational searches were performed on MacroModel Version 6.0, using the MM2 force field and the Polak-Ribiere conjugate gradient as algorithm.
  • 50
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    • note
    • We also synthesized the glucosamine derivative (-)-103, which afforded the macrocycle (-)-104 on treatment with potassium carbonate in DMF. Similarly, (-)-108 gave only the dimeric (+)-109 under conditions of high dilution. For details, see the Supporting Information.
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    • It is relevant to note that Schultz and co-workers reported a convenient method for the preparation of macrocycles via the bimolecular cyclization of o-fluorobenzamides; this protocol failed with the corresponding tertiary amide, affording the undesired unimolecular reaction products: Schultz, A. G.; Pinto, D. J. P.; Welch, M.; Kullnig, R. K. J. Org. Chem. 1988, 53, 1372-1380.
    • (1988) J. Org. Chem. , vol.53 , pp. 1372-1380
    • Schultz, A.G.1    Pinto, D.J.P.2    Welch, M.3    Kullnig, R.K.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.