6,7-dimethoxy-1-methyl-3,1-benzoxazine-2,4-dione

1-propyl-3,1-benzoxazine-2,4-dione

(2,4,6-trimethylbenzoyl) 2,4,6-trimethylbenzoate

5-氧代戊酸甲酯

4-羟基-2-甲基苯甲酸甲酯