methyl 5-oxo-7-trimethylsilylhept-6-ynoate

1-hydroxydec-9-en-5-one

methyl 4-[2-(1H-indol-3-yl)ethylamino]-4-oxobutanoate

5-(2-hydroxy-4-methylphenyl)-5-oxopentanoic acid

5-O-tert-butyl 1-O-methyl pentanedioate