Abstract
A revised configurational assignment for the cytotoxic marine macrolide dolastatin 19 is proposed and validated by total synthesis. Key features of the route include an asymmetric vinylogous aldol reaction to install the isolated C13 stereocenter and (E)-trisubstituted alkene, two sequential 1,4-syn boron-mediated aldol reactions, and a Mukaiyama glycosylation to append the L-rhamnose-derived pyranoside.
Original language | English |
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Pages (from-to) | 2131-2134 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 8 |
Issue number | 10 |
DOIs | |
Publication status | Published - 11 May 2006 |
Keywords
- MARINE NATURAL-PRODUCTS
- HARE DOLABELLA-AURICULARIA
- MACROLIDE
- CALLIPELTOSIDE