Structure Identification: |
Org Lett. 2006 Jul 6;8(14):2989-92. | Origins of selectivity in pericyclic reaction cascades for the synthesis of gambogin and lateriflorone.[Pubmed: 16805534] | Quantum mechanical calculations demonstrate that the second step of a Claisen-Diels-Alder reaction cascade controls regioselectivity that gives advanced intermediates for the synthesis of Gambogin and 1-O-methyllateriflorone. | Phytochemistry. 1996 Feb;41(3):815-20. | Cytotoxic xanthones from Garcinia hanburyi[Pubmed: 8835458] | METHODS AND RESULTS:
Eleven novel cytotoxic xanthones, Gambogin, morellin dimethyl acetal, isomoreollin B, moreollic acid, gambogenic acid, gambogenin, isogambogenin, desoxygambogenin, gambogenin dimethyl acetal, gambogellic acid and hanburin were isolated together with four known xanthones, gambogic acid, isomorellin, morellic acid and desoxymorellin, from the dry latex of Garcinia hanburyi.
CONCLUSIONS:
The structures were elucidated by a detailed spectroscopic analysis. |
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