Abstract

Terpenoid constituents from the stem bark of Mangifera indica variety 'Langra'

Author(s): S.H.Ansari, Mohd. Ali, Kamran Javed Naquvi

Phytochemical investigation of the chloroform extract of the stem bark of Mangifera indica variety “Langra” yielded four new phytoconstituents characterized as 3,7,11-trimethyl dodec-7-ene-12-ol-5,10-dione (farnesenedione) (1), 3,7,11,15-tetramethyl hexadecane-12-one-1-yl-3'¦,7'¦- dimethyl oct-2'¦-en-1’¦-oate (2), n-dodecanyl-n-eicos-2-en-16-oxo-1-oate (3) and n-hexacosan-17-one-1-yl acetate (4) along with the known fatty acid ester dodecanyl palmitate (5). The structures of these phytoconstituents have been elucidated on the basis of spectral data analysis and chemical reactions.