4-hydroxy-5-methoxy-2-methyl-anthrone

6-methoxy-4-methyl-2H-pyran-2-one

7-甲氧基-3-苯磺酰基-1(3H)-异苯并呋喃酮

9,10-dihydroxy-8-methoxy-3-methyl-3,4-dihydroanthracen-1(2H)-one

3-hydroxy-2-(2-hydroxy-4-methyl-benzoyl)-benzoic acid