Phytochemistry p. 1303 - 1304 (1981)
Update date:2022-08-10
Topics:
Karunanayake, Subadra
Sotheeswaran, Subramanian
Sultanbawa, M. Uvais S.
Balasubramaniam, Sinnathamby
Key Word Index-Calophyllum tomentosum; Guttiferae; xanthones; triterpenes; branch timber; sapwood; heartwood.Abstract-The bark, branch timber, sapwood and heartwood extractives of Calophyllum tomentosum contain friedelin, friedelan-3-β-ol, betulinic acid, taraxerol, taraxerone, calabaxanthone, 6-deoxyjacareubin, 1,5-dihydroxyxanthone, 1,6-dihydroxy-5-methoxyxanthone, 1,7-dihydroxyxanthone, jacareubin and 1,3,5-trihydroxy-2(3-methylbut-2-enyl)xanthone.The heartwood contains only xanthones.Sapwood and branch timber are chemically similar.Calabaxanthone is present in the bark but not in the branch timber which has only triterpenes and sitosterol.
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