An Expedient Enantioselective Strategy for the Oxatetracyclic Core of Platensimycin
作者:Krishna P. Kaliappan、Velayutham Ravikumar
DOI:10.1021/ol070848t
日期:2007.6.1
An enantioselective route for the synthesis of oxatetracyclic core of platensimycin is reported for the first time using a 5-exo-trig cyclization followed by intramolecular etherification as key reactions. The requisite dienynone for the radical cyclization is synthesized in eight steps from the Wieland-Miescher ketone employing a Claisen rearrangement.