5,7-di-tert-butyloxepine-2,3-dione

双氧水

4,6-di-tert-butyl-1-oxacyclohepta-4,6-diene-2,3-dione

缩水甘油

2-(2,4-di-tert-butyl-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyacetic acid