7'-bromo-1,2'-dimethyl-2-thioxo-3',4'-dihydro-2'H-spiro[imidazolidine-4,1'-naphthalen]-5-one
7'-bromo-1,2'-dimethyl-3',4'-dihydro-2'H-spiro[imidazolidine-4,1'-naphthalene]-2,5-dione
7'-bromo-2'-methyl-3',4'-dihydro-2'H-spiro[imidazolidine-4,1'-naphthalene]-2,5-dione
7-bromo-2-methyl-3,4-dihydronaphthalen-1(2H)-one
7-bromo-3,4-dihydro-2H-naphthalen-1-one