• Bulletin of the Korean Chemical Society
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• v.31 no.11
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• pp.3475-3478
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• 2010

• Journal of Plant Biology
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• v.37 no.4
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• pp.411-415
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• 1994

In immature seeds of Phaseolus vulgaris, the presence of threee new 2-deoxy type brassinosteroids (trihydroxybrassinosteroids) have been demonstrated. These less polar brassinosteroids have been demonstrated. These less polar brassinosteroids have been tentatively characterized to be (3ξ, 22ξ, 23ξ)-2-deoxy-25-methylodolicholide, (3ξ, 22ξ, 23ξ)-2-deoxoy-dolichosterone and (3ξ, 22ξ, 23ξ)-2-deoxy-24-ethylbrassinone by analysis of gas chromatography-mass spectrometry. Their less biological activity and oxidation state than those of tetrahydroxybrassinosteroids suggest that they are potent biosynthetic precusors of tetrahydroxybrassinosteroids.