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Trauner's synthesis of crocagin A (57). BOP=benzotriazol‐1‐yloxytris(dimethylamino)phosphonium hexafluorophosphate, Rh[(COD)(Et‐DuPhos)BF4]=1,2‐bis[2,5‐diethylphospholano]benzene(1,5‐cyclooctadiene)rhodium(I) tetrafluoroborate, TBDMS=tert‐butyldimethylsilyl.
