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dc.contributor.author Mutanyatta, J.
dc.contributor.author Matapa, B.
dc.contributor.author Shushu, D.
dc.contributor.author Abegaz, B.
dc.date.accessioned 2008-10-22T07:20:03Z
dc.date.available 2008-10-22T07:20:03Z
dc.date.issued 2002
dc.identifier.citation Mutanyatta, J. et al (2002) Homoisoflavonoids and xanthones from the tubers of wild and in vitro regenerated Ledebouria graminifolia and cytotoxic activities of some of the homoisoflavonoids, Phytochemistry, Vol. 62, pp. 797-804 en
dc.identifier.issn 0031-9422
dc.identifier.uri http://hdl.handle.net/10311/249
dc.description.abstract Eleven homoisoflavonoids and two xanthones were isolated and characterized from the bulbs of Ledebouria graminifolia. Five of the homoisoflavonoids are new compounds and were identified as: 5-hydroxy-7-methoxy-3-(40-hydroxybenzyl)-4-chromanone, 5-hydroxy-6,7-dimethoxy-3-(40-hydroxybenzyl)-4-chromanone, 5,7,8-trimethoxy-3-(40-hydroxybenzyl)-4-chromanone, 5-hydroxy- 30,40,7-trimethoxyspiro{2H-1-benzopyran-70-bicyclo[4.2.0]octa[1,3,5]-trien}-4-one, 5,7-dihydroxy-30,40-dimethoxyspiro{2H-1-benzopyran- 70-bicyclo[4.2.0]octa[1,3,5]-trien}-4-one. Structures were elucidated by extensive 1D, and 2D NMR spectroscopy and HRMS. A method for tissue culture was developed and the bulbs of mature plants were found to contain all the compounds isolated from the wild specimens of L. graminifolia. en
dc.language.iso en en
dc.publisher Elsevier Ltd. www.elsevier.com/locate/phytochem en
dc.subject Ledebouria graminifolia en
dc.subject Hyacinthaceae en
dc.subject Maloba en
dc.subject Bulb en
dc.subject Structure elucidation en
dc.subject Tissue culture en
dc.subject Anti-tumor activity en
dc.subject Spectroscopy en
dc.subject Homoisoflavonoids en
dc.subject Xanthones en
dc.title Homoisoflavonoids and xanthones from the tubers of wild and in vitro regenerated Ledebouria graminifolia and cytotoxic activities of some of the homoisoflavonoids en
dc.type Article en


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