| Abstrakt: |
The complete structure of the triterpene glycoside triacanthoside C (I) isolated from the pericarps of the honeylocust,Gleditschia triacanthosL. (family Leguminosae) has been established as a hexaoside of oleanolic acid. From the green pods of the honeylocust, in addition to the ten triacanthosides described previously, oleanolic and echinocystic acids have been isolated, and also five other triterpene glycosides-gleditschosides A, B, C, D, and E. Gleditschoside A, C36H58O8, is oleanolic acid β-D-glucopyranoside (VII), gleditschoside B, C36H58O9is echinocystic acid β-D-glucopyranoside (VIII), gleditschoside C, C41H66O12, is oleanolic acid 3-O-[α-L-arabinopyranosyl-(1→3)-O-β-D-glucopyranoside] (V), gleditschoside E, C41H66O13, is echinocystic acid 3-O-[α-L-arabinopyranosyl-(1→3)-O-β-D-glucopyranoside] (VI), and gleditschoside D, C46H74O16, is oleanolic acid 3-O-[β-D-xylopyranosyl-(1→4)-O-α-L-arabopyranosyl-(1→3)-O-β-D-glucopyranoside]. Gleditschosides A, B, C, D, and E have also been detected in the leaves of the plant. |
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