Answers are grounded in this paper and cite their sources.
Starting from CBz-protected glutamic anhydride and Boc-protected o-aminobenzyl amine, the first total synthesis of proposed structure of auranthine has been reported. An intramolecular aza-Wittig reaction involving a lactam carbonyl group that delivered the diazepine core unit was the key step in the synthesis.
No takes yet. Share an insight, caveat, or question.
Kshirsagar et al. (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: