1-(1-methylethenyl)-3,3-methylene-5,5-dimethyl-2-pyrrolidinone

phenyl-(2,2,6,6-tetramethylpiperidin-1-yl)methanone

2,2,6,6-tetramethyl-4-prop-2-ynylpiperidin-4-ol

3,5-dibromo-1-hydroxy-2,2,6,6-tetramethylpiperidin-4-one

5,5,7,7-tetramethyl-1-oxa-6-azaspiro[2.5]octane