ORGN 72 |
| Polyhydroxylated pyrrolizidine alkaloids are a class of natural products which exhibit interesting biological properties. We have recently developed conditions for a novel [3+2]-cycloaddition reaction as an efficient entry to highly functionalized pyrrolidines. This approach provides a straightforward route to natural products containing highly oxygenated pyrrolidine subunits, which is demonstrated by an expedient synthesis of the pyrrolizidine alkaloid (+)-alexine. |
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Asymmetric Reactions and Syntheses
1:00 PM-5:00 PM, Sunday, 10 September 2006 Moscone Center -- Room 131, Oral
Division of Organic Chemistry |