5-methyl-3-(4-phenoxyphenyl)-1H-pyridazin-6-one

benzyl 3-(acetylsulfanylmethyl)-4-chloro-4-oxobutanoate

3-methyl-5-(4-methylphenyl)iminofuran-2-one

4-(hexylamino)-2-methylidene-4-oxobutanoic acid

3-(chloromethyl)oxolane-2,5-dione