36804-95-2 Cephalotaxine, 4-methyl 2-hydroxy-2-(3-methylbutyl)butanedioate (ester), [3(R)]- Cephalotaxine, 4-methyl-2-hydroxy-2-(3-methylbutyl)butanedioate (ester), [3(R)]- DEOXYHARRINGTONINE NSC142196