Knott KE, Auschill S, Jäger A, Knölker HJ..
First total synthesis of the whole series of the antiostatins A and B., Chem Commun (Camb). 2009 Mar 28;(12):1467-9. The first synthesis of the whole antiostatin family is described by using an iron-mediated carbazole synthesis, regioselective nitration at C-4 and establishing 5-isobutyl-1-nitrobiuret as a reagent for introduction of the antiostatin B side chain at C-4.