2-(2-methoxy-2-oxoethylidene)butanedioate

acetic acid,1,1,1-trichloropent-3-en-2-ol

benzoic acid,1,1,1-trichloropropan-2-ol

硝酸乙酯

methyl 3-bromo-4-oxo-2,4-diphenylbutanoate