4-acetyl-6,6-bis(4-fluorophenyl)-3-methyl-1,2-dioxan-3-ol

2,2-bis(4-fluorophenyl)-2-hydroxyethyl acetate

4,4'-二氟二苯甲酮

乙酸锰

3,3-bis(hydroxymethyl)-4-methoxybutan-2-one