Povarov reactions of exo-glycals: preparation of C-linked, quinoline analogues
摘要:
A one-pot approach based upon the Povarov reaction has been efficiently employed with a number of exo-glycals and para-substituted benzanilines to synthesize novel open-ring, carbohydrate-derived quinolines. The mechanism of this reaction was studied and an explanation for the observed stereo-selectivity is proposed. Treatment of the compounds with the Lewis acid, boron trichloride, successfully removes the benzyl ether protecting groups in good yields. Several of the prepared compounds have been screened in the National Cancer Institute's (NCI's) 60 cell line model. Moderate activity was observed for several leukemia cell lines. (C) 2011 Elsevier Ltd. All rights reserved.
Facile one-pot method for the synthesis of novel glycosylidene-based quinolines
摘要:
A one-pot approach to the synthesis of novel glycosylidene-based quinolines is described. The reaction involves a Lewis acid catalyzed Povarov addition followed by oxidation of the resulting spiroanellated tetrahydroquinoline intermediates to yield the open-ring glycosylidene-derived quinoline. (C) 2009 Elsevier Ltd. All rights reserved.
Povarov reactions of exo-glycals: preparation of C-linked, quinoline analogues
作者:Peter H. Dobbelaar、Cecilia H. Marzabadi
DOI:10.1016/j.tet.2011.09.077
日期:2011.12
A one-pot approach based upon the Povarov reaction has been efficiently employed with a number of exo-glycals and para-substituted benzanilines to synthesize novel open-ring, carbohydrate-derived quinolines. The mechanism of this reaction was studied and an explanation for the observed stereo-selectivity is proposed. Treatment of the compounds with the Lewis acid, boron trichloride, successfully removes the benzyl ether protecting groups in good yields. Several of the prepared compounds have been screened in the National Cancer Institute's (NCI's) 60 cell line model. Moderate activity was observed for several leukemia cell lines. (C) 2011 Elsevier Ltd. All rights reserved.
Facile one-pot method for the synthesis of novel glycosylidene-based quinolines
作者:Peter H. Dobbelaar、Cecilia H. Marzabadi
DOI:10.1016/j.tetlet.2009.10.129
日期:2010.1
A one-pot approach to the synthesis of novel glycosylidene-based quinolines is described. The reaction involves a Lewis acid catalyzed Povarov addition followed by oxidation of the resulting spiroanellated tetrahydroquinoline intermediates to yield the open-ring glycosylidene-derived quinoline. (C) 2009 Elsevier Ltd. All rights reserved.