methyl (1S*,2S*)-3-[4-methylene-2-(3,4-methylenedioxyphenyl)-1-nitrocyclopent-1-yl]propionate

(5S*,6S*)-8,8-ethylenedioxy-6-(3,4-methylenedioxyphenyl)-1-azaspiro(4.4)nonan-2-one

(5S*,6S*)-6-(3,4-methylenedioxyphenyl)-1-[(methylthio)acetyl]-1-azaspiro[4,4]nonan-8-one

(5S*,6S*,8S*)-6-(3,4-methylenedioxyphenyl)-1-[(methylthio)acetyl]-1-azaspiro[4,4]nonan-8-ol

(2S*,3aS*,14bS*)-2-acetoxy-1,2,3,5,6,8,9,14b-octahydro-4H-cyclopenta[a]-1,3-dioxolo[4,5-h]pyrrolo[2,1-b][3]benzazepin-8-one