methyl 3,3-diethyl-2,2-dimethylpentanoate

methyl 2,2,3-trimethyl-3-propylhexanoate

methyl 2,2,3,3-tetramethyloctanoate

methyl 6-bromo-2,2,3,3-tetramethylhexanoate

methyl 3-amino-2,2-dimethylbutanoate