Abstract
Versatile synthetic routes are described for the preparation of a range of epoxyquinol and epoxyquinone analogues of the antitumour antibiotic manumycin A lacking the lower side chain, and these procedures have also been applied to prepare the bioactive natural product LL-C 10037 alpha. The extension of this methodology to provide a general synthetic route to the manumycin family of antibiotics is discussed and exemplified by the first total synthesis of alisamycin and ent-alisamycin. This route includes the novel, stereoselective organometallic addition of the Corey-Wollenberg reagent (E-2-tributylstannylethenyllithium) to the manumycin nucleus and palladium catalysed Stille coupling technology for the introduction of the polyunsaturated 2-amino-3-hydroxycyclopentenone derived amide. Similar methodology has also been employed to complete the first total synthesis of the antibiotic nisamycin.
| Original language | English |
|---|---|
| Pages (from-to) | 775-790 |
| Number of pages | 16 |
| Journal | SYNTHESIS-STUTTGART |
| Issue number | 5 |
| Publication status | Published - May 1998 |
Keywords
- LL-C10037 alpha
- alisamycin
- nisamycin
- manumycin analogues
- Stille coupling
- STREPTOMYCES SP K106
- ANTITUMOR ANTIBIOTIC LL-C10037-ALPHA
- RAS FARNESYLTRANSFERASE INHIBITORS
- HYPERVALENT IODINE OXIDATION
- ABSOLUTE STEREOCHEMISTRY
- STRUCTURE ELUCIDATION
- BIOLOGICAL PROPERTIES
- METABOLIC PRODUCTS
- SODIUM PERBORATE
- BIOSYNTHESIS
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