Syntheses of 24,25-dideoxy-fasciculol-A and fasciculol-A, constituent of Naematoloma fasciculare (Fr.) Karst, a poisonous bitter mushroom.
24,25-Dideoxy-fasciculol-A, fasciculol-A and its C-24 epimer were synthesized from lanosterol and the absolute stereo-structure of fasciculol-A was confirmed.