Chemical Investigation of Some Annonaceae Species

Abstract
Polyalthia cerasoides leaf and stem possess α-spinasterol and β-sitosterol, bark of P. suberosa afforded scopoletin, β-sitosterol and β-sitosterol – β – D-glucoside while the bark of Mitrephora heyneana yielded betulinic acid, betulin, lupeol and β-sitosterol.