Reaction of 1-Benzylindole-2,3-dicarboxylic Anhydride with 3-Bromo-4-lithiopyridine: Formal Synthesis of Ellipticine
摘要:
Reaction of 1-benzylindole-2,3-dicarboxylic anhydride with 3-bromo-4-lithiopyridine gave 2-(3-bromoisonicotinoyl)indole-3-carboxylic acid as the sole product. The indole-3-carboxylic acid could be converted to 6-benzylellipticine quinone in five steps.
selenoesters under hexabutylditin−hν conditions undergo regioselective intramolecular reaction with unprotonated pyridines to give polycyclic indolylpyridyl ketones. For substrates bearing a (3-pyridyl)methyl moiety connected to the 3-position of the indole ring, the cyclization provides easy access to ellipticine quinones.
Tandem directed metalation reactions. Short syntheses of polycyclic aromatic hydrocarbons and ellipticine alkaloids
作者:M. Watanabe、V. Snieckus
DOI:10.1021/ja00524a059
日期:1980.2
Diversity-Oriented Synthesis of Calothrixins and Ellipticines
作者:Dattatraya H. Dethe、Ganesh M. Murhade
DOI:10.1002/ejoc.201402837
日期:2014.11
The divergent synthesis of calothrixins and ellipticines has been accomplished by utilising the one-pot formation of o-diacylarenes as a key intermediate through rearrangement of o-hydroxy ketone monoacyl hydrazones by lead tetraacetate mediated oxidation.
Reaction of 1-benzylindole-2,3-dicarboxylic anhydride with 3-bromo-4-lithiopyridine gave 2-(3-bromoisonicotinoyl)indole-3-carboxylic acid as the sole product. The indole-3-carboxylic acid could be converted to 6-benzylellipticine quinone in five steps.