898
Phytochemical study on the methanol extract of the fruit bodies of Vietnamese fungus Daldinia concentrica has led to the isolation and structural elucidation of three cytotoxic constituents , 6 , 8 - dihydroxy - 3 - methyl - 3 , 4 - dihydroisocoumarin ( 1 ) , ( 22R ) - hydroxylanosta - 7 , 9 ( 11 ) , 24 - trien - 3 - one ( 2 ) and ergosterol ( 3 ) .
 methanol, 6 , 8 - dihydroxy - 3 - methyl - 3 , 4 - dihydroisocoumarin, ( 22R ) - hydroxylanosta - 7 , 9 ( 11 ) , 24 - trien - 3 - one, ergosterol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 methanol, 6 , 8 - dihydroxy - 3 - methyl - 3 , 4 - dihydroisocoumarin, ( 22R ) - hydroxylanosta - 7 , 9 ( 11 ) , 24 - trien - 3 - one, ergosterol