(6-tert-butyl-4-oxo-1H-pyrimidin-2-yl)urea

4-(bromomethyl)-5-tert-butyl-1,3-dioxol-2-one

N,N,4,4-tetramethyl-3-oxopentanamide

N,N,4,4-tetramethyl-2,3-dioxopentanamide

1-羟基-4,4-二甲基-3-戊酮