Tricyclic Diterpenes from the Stem Bark of Azadirachta indica.
Two new diterpenoids, margosone and margosolone, have been isolated from the stem bark of AZADIRACHTA INDICA A. Juss (neem) and their structures established as 12,13-dihydroxy-14-isoporpylpodocarpa-8,11,13-trien-7-one and 13-hydroxy-12-methoxypodocarpa-8,11,13-trien-7-one, respectively, through chemical and spectroscopic studies.
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H.E.J. Research Institute of Chemistry, University of Karachi, Karachi-32, Pakistan.
Siddiqui
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Faizi
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Siddiqui
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