7-Hydroxy-2,2-dimethyl-4-chromanone 7-(N,N-diethylisourea)

6-chloro-2,2-dimethyl-4-oxochroman-7-yl diethylcarbamimidate

2,2-dimethyl-chromanon-7-yl triflate

S-(2,2-dimethyl-4-oxochroman-7-yl) dimethylcarbamothioate

2,2-二甲基色满