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

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.