Triterpenes from Ganoderma lucidum

Three new lanostanoid triterpenes, isolated from the mycelia of the fungus Ganoderma lucidum, were determined to be 3β-hydroxy-15α-acetoxy-lanosta-7,9(11),24-trien-26-oic acid, 3β-acctoxy-15α-hydroxy-lanosta-7,9(11),24-trien-26-oic acid and 3-oxo-15α-acetoxy-lanosta-7,9(11),24-trien-26-oic acid by spectroscopic and chemical methods.