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Spiroketals: Toward the synthesis of 39-oxobistramide K

Spiroketals: Toward the synthesis of 39-oxobistramide K

Pure and Applied Chemistry, 2000
Janine Cossy
Abstract
ABSTRACT An advanced spiroketal intermediate toward the synthesis of 39-oxobistramide K was prepared, fragment C14–C40. This fragment was obtained in 19 steps with an overall yield of 6.2 % using a FeCl3-catalyzed spiroketalization as the key step.

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