2,2-二甲基戊二酸酐

5-甲氧基-4,4-二甲基-5-氧代戊酸

Pentanoic acid, 5-chloro-2,2-dimethyl-5-oxo-, methyl ester

2,2-dimethyl-5-oxo-hexanoic acid ethyl ester

4,4-dimethyl-5-oxo-hexanoic acid ethyl ester