(1R,4aR,9aS)-8-hydroxy-1-methoxy-1,3-bis((trimethylsilyl)oxy)-1,4,4a,9a-tetrahydroanthracene-9,10-dione

(1R,4aS,9aR)-9a-chloro-8-hydroxy-1-methoxy-1,3-bis((trimethylsilyl)oxy)-1,4,4a,9a-tetrahydroanthracene-9,10-dione

大黄酸

8-hydroxy-1,3-dimethoxyanthracene-9,10-dione

1,3,8-trimethoxyanthraquinone