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Structure of moreollin, a pigment isolated fromGarcinia morella Desser

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The structure of moreollin (3), isolated from the seed coat ofG. morella, and its isomerised product, isomoreollin (4) have been established as the ethanol adducts of morellin (1) and isomorellin (2) on the basis of p.m.r., c.m.r., mass spectrometry and confirmed by partial synthesis from morellin (1) and isomorellin (2).

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Correspondence to G S R Subba Rao.

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Subba Rao, G.S.R., Rathnamala, S. & Sivaramakrishnan, R. Structure of moreollin, a pigment isolated fromGarcinia morella Desser. Proc. Indian Acad. Sci., A (Chemical Sciences) 87, 75–86 (1978).

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  • Structure elucidation
  • complex xanthone
  • p.m.r.
  • c.m.r.
  • mass spectra