(5S*,6S*,8S*)-8-acetoxy-6-(3,4-methylenedioxyphenyl)-1-((methylsulfinyl)acetyl)-1-azaspiro(4,4)nonane

(5S)-3,4-didehydro-3-hydroxy-cephalotaxane-2,8-dione

(2S,3R,4S,5S)-2,3-dihydroxy-cephalotaxan-8-one

(11bS,13S,14aS)-13-hydroxy-2,3,11b,12,13,14-hexahydro-1H-[1,3]dioxolo[4',5':4,5]benzo[1,2-d]cyclopenta[b]pyrrolo[1,2-a]azepin-5(6H)-one

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