3-methyl-5-prop-1-enyl-4,5-dihydro-1,2-oxazole

3-methyl-5-trichloromethylisoxazole

7-acetyl-3,5,5-trimethyl-2-(3-methyl-isoxazol-5-ylmethyl)-7H-benzofuran-4,6-dione

3-甲基异恶唑-5-甲醛