Pure Appl. Chem., 2012, Vol. 84, No. 7, pp. 1567-1574
Published online 2012-02-28
Spiroketals: Toward the synthesis of 39‑oxobistramide K
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.
Full text is not freely available - buy it online.