tert-butyl 4-(4-ethyl-3-iodophenyl)-4-methyl-3-oxopentanoate; Benzenebutanoic acid, 4-ethyl-3-iodo-gamma,gamma-dimethyl-beta-oxo-, 1,1-dimethylethyl ester;1,1-Dimethylethyl 4-ethyl-3-iodo-gamma,gamma-dimethyl-beta-oxobenzenebutanoate