3-乙酰氧基-3-甲基戊烷-1,5-二酸酸酸酐

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

3-羟基-3-甲基谷氨酸

8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione

2-methyl-5-methoxy-1,4-anthraquinone