coumarin-3-tert-butyl-peroxyester

2-乙酰基香豆酸

丙酮

N-phenyl-c-3,c-4-bis(2-hydroxyphenyl)-r-1,c-2-cyclobutanedicarboximide

2-ethoxycarbonyl-1-(2-hydroxyphenyl)-1-α,2α,2aβ,8bβ-tetrahydro-3H-cyclobuta-[c]-chromen-3-one