Total synthesis and biological evaluation of Amaryllidaceae alkaloids: Narciclasine, ent-7-deoxypancratistatin, regioisomer of 7-deoxypancratistatin, 10b-epi-deoxypancratistatin, and truncated derivatives

Tomas Hudlicky, Uwe Rinner, David Gonzalez, Hulya Akgun, Stefan Schilling, Peter Siengalewicz, Theodore A. Martinot, George R. Pettit

Research output: Contribution to journalArticle

171 Citations (Scopus)


Biocatalytic approaches have yielded efficient total syntheses of the major Amaryllidaceae alkaloids, all based on the key enzymatic dioxygenation of suitable aromatic precursors. This paper discusses the logic of general synthetic design for lycoricidine, narciclasine, pancratistatin, and 7-deoxypancratistatin. Experimental details are provided for the recently accomplished syntheses of narciclasine, ent-7-deoxypancratistatin, and 10b-epi-deoxypancratistatin via a new and selective opening of a cyclic sulfate over aziridines followed by aza-Payne rearrangement. The structural core of 7-deoxypancratistatin has also been degraded to a series of intermediates in which the amino inositol unit is cleaved and deoxygenated in a homologous fashion. These truncated derivatives and the compounds from the synthesis of the unnatural derivatives have been tested against six important human cancer cell lines in an effort to further develop the understanding of the mode of action for the most active congener in this group, pancratistatin. The results of the biological activity testing as well as experimental, spectral, and analytical data are provided in this manuscript for all relevant compounds.

Original languageEnglish
Pages (from-to)8726-8743
Number of pages18
JournalJournal of Organic Chemistry
Issue number25
Publication statusPublished - Dec 13 2002


ASJC Scopus subject areas

  • Organic Chemistry

Cite this