6-methyl-3-methylene-5-phenyltetrahydropyran-2-one

5,6-dihydro-3,6-dimethyl-4-hydroxy-2H-pyran-2-one

2-chlorobenzenesulphinic acid

3,6-dimethyl-4-(phenylthio)tetrahydro-2H-pyran-2-one

methyl (2R,3S)-2-methyl-5-oxo-3-(phenylthio)hexanoate