1,1-dimethyl-2-(1,1-dimethylethyl)cyclobutane

2,2,3,4,4-pentamethyl-3-(hydroxymethyl)pentane

2-tert-butyl-3,3-dimethylbut-1-en-1-one

2-tert-butyl-3,3-dimethylbutanamide

2,3,3-trimethyl-2-propan-2-ylbutan-1-ol