Total Synthesis of Thapsigargin, a Potent SERCA Pump Inhibitor
作者:Matthew Ball、Stephen P. Andrews、Frank Wierschem、Ed Cleator、Martin D. Smith、Steven V. Ley
DOI:10.1021/ol062947x
日期:2007.2.1
The enantioselective total synthesis of thapsigargin, a potent, selective inhibitor of the Ca2+ pump SERCA, is described. Starting from ketoalcohol 8, key steps involve regioselective introduction of the internal olefin at C4-C5, judicious protecting group choice to allow chelation-controlled reduction at C3, and chemoselective introduction of the angelate ester function at C3-O. A selective esterification approach completes the total synthesis in a total of 42 steps and 0.61% overall yield (88.6% average yield per step).