1-[(1S,3aR,14bS)-2-Methoxy-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[a][1,3]dioxolo[4,5-H]pyrrolo[2,1-b][3]benzazepin-1-yl] 4-methyl (2R)-2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate
CEPHALOTAXINE, 4-METHYL (2R)-2-HYDROXY-2-(4-HYDROXY-4-METHYLPENTYL)BUTANEDIOATE (ESTER)