. . . . . . . . . "Tropinone" . . "8-Methyl-8-azabicyclo[3.2.1]octan-3-one" . . . "Tropinone" . "plant products of biological importance" . . "3-Tropinone" . . "the synthesis of tropinone reported in 1917 by Robinson" . "tropinone" . . . . .