1,3,8-三羟基-6-甲氧基-2-(1-氧代己基)-9,10-蒽醌

4-methoxy-1-oxaspiro[5.5]undec-3-en-2-one

4-甲氧基-5,6-二氢-2H-噻喃-2-酮

4-甲氧基-6-苯基-5,6-二氢-2H-吡喃-2-酮

7-hydroxy-5-methoxy-3H-2-benzofuran-1-one