Gibberellin A43 and other terpenes in endosperm of Echinocystis macrocarpa |
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| Authors: | Lee J Beeley Paul Gaskin Jake Macmillan |
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| Institution: | School of Chemistry, The University, Bristol BS8 ITS, England |
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| Abstract: | By GC-MS the following acidic constituents of the endosperm of Echinocystis macrocarpa were identified: abscisic acid and its trans,trans-isomer, 4′-dihydrophaseic acid, GA4, GA7, iso-GA7, GA24, GA25, two isomers of GA13, GA43, ent-6α,7α,17-trihydroxy-16αH-kauran-19-oic acid and ent-6α,7α, 16β, 17-tetrahydroxykauran- 19-oic acid. The structures of the last three new natural products were confirmed by partial synthesis. ent-Kaurene was detected in the neutral fraction. |
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| Keywords: | Cucurbitaceae nucellus-endosperm GC-MS |
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