Fenaftic

1-(Diethylcarbamoyl)-1,2,3,4,5,6,7,8-octahydro-6,6-dimethyl-8-oxo-3-phenyl-2-naphthoic acid

1-(diethylcarbamoyl)-6,6-dimethyl-8-oxo-3-phenyl-1,2,3,4,5,7-hexahydronaphthalene-2-carboxylic acid

1-(diethylcarbamoyl)-8-keto-6,6-dimethyl-3-phenyl-1,2,3,4,5,7-hexahydronaphthalene-2-carboxylic acid