diethyl 3-acetyloxy-2,2-dimethylbutanedioate

O-乙酰基-4-甲基水杨酸

acetic acid,2-methylprop-1-en-1-ol

(2R)-乙酰氨基-2-苯乙酸

[2-[acetyloxymethyl(nitro)amino]ethyl-nitroamino]methyl acetate