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Studies towards the synthesis of the benzodiazepine alkaloid auranthine

✍ Scribed by Anette Witt; Annika Gustavsson; Jan Bergan

Publisher: Journal of Heterocyclic Chemistry
Year: 2003
Tongue: English
Weight: 88 KB
Volume: 40
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570400103

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✦ Synopsis

Abstract

Different approaches towards the synthesis of auranthine have been investigated. A completed synthesis of 3‐[2‐(4‐oxo‐3,4‐dihydro‐quinazolin‐2‐yl)‐3,4‐dihydro‐1H‐benzo[e][1,4]‐diazepine‐2,5‐dione, an auranthine precursor, which after dehydration with 50% propylphophonic acid anhydride solution in ethl acetate and DMA gave a C‐acetyl derivative of aurnathine. Additionally studies towards the synthesis of fused quinazolinones yielded the C‐acetylated pyrido[2,1‐b]quinazolinones or butyric acid derivatives.

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