Structures of new friedelane-type triterpenes and eudesmane-type sesquiterpene and aldose reductase inhibitors from Salacia chinensis.

@article{Morikawa2003StructuresON,
  title={Structures of new friedelane-type triterpenes and eudesmane-type sesquiterpene and aldose reductase inhibitors from Salacia chinensis.},
  author={Toshio Morikawa and Akinobu Kishi and Yutana Pongpiriyadacha and Hisashi Matsuda and Masayuki Yoshikawa},
  journal={Journal of natural products},
  year={2003},
  volume={66 9},
  pages={1191-6}
}
Three new friedelane-type triterpenes named salasones A (1), B (2), and C (3), a new norfriedelane-type triterpene, salaquinone A (4), and a new acylated eudesmane-type sesquiterpene, salasol A (5), were isolated from the 80% aqueous methanolic extract of the stems of Salacia chinensis collected in Thailand. Their stereostructures were elucidated on the basis of chemical and physicochemical evidence. In addition, six constituents, 3beta,22beta-dihydroxyolean-12-en-29-oic acid, tingenone… CONTINUE READING
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