5-hydroxy-1-methyl-5-pent-4-enylpyrrolidin-2-one

5-(1,3-dithian-2-yl)-5-hydroxy-1-methylpyrrolidin-2-one

trimethyl-(1-methyl-5-trimethylsilyloxypyrrol-2-yl)oxysilane

3-(4-methoxybenzoyl)-1-methylpyrrolidine-2,5-dione

5-hydroxy-1-methyl-5-[4-(trifluoromethyl)phenyl]pyrrolidin-2-one