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Syntheses of (−)-aspewentins A–C according to Stoltz and co-workers. PHOX = phosphinooxazolines, Bz2O = benzoic anhydride, cap = caprolactamate, nbd = norbornadiene, DIBALH = diisobutylaluminum hydride, TBHP = tert-butyl hydroperoxide, TEMPO = 2,2,6,6-tetra-methylpiperidinyloxyl.
