Crude drugs from aquatic plants. V. On the constituents of alismatis rhizoma. (3). Stereostructures of water-soluble bioactive sesquiterpenes, sulfoorientalols a, b, c, and d, from Chinese alismatis rhizoma.

@article{Yoshikawa1994CrudeDF,
  title={Crude drugs from aquatic plants. V. On the constituents of alismatis rhizoma. (3). Stereostructures of water-soluble bioactive sesquiterpenes, sulfoorientalols a, b, c, and d, from Chinese alismatis rhizoma.},
  author={Masayuki Yoshikawa and Sumie Yamaguchi and Hisashi Matsuda and Naonobu Tanaka and Joji Yamahara and Noboru Murakami},
  journal={Chemical & pharmaceutical bulletin},
  year={1994},
  volume={42 12},
  pages={2430-5}
}
From the water-soluble portion of Chinese Alismatis Rhizoma, four bioactive sesquiterpenes, sulfoorientalols a, b, c, and d, were isolated and their structures having a sulfonic acid function were established on the basis of chemical and physicochemical evidence. In addition, two sulfoorientalol congeners were derived from alismol by sulfonation of the exo-methylene moiety. Sulfoorientalols and the synthetic congeners were found to inhibit the carbachol-induced contraction of isolated bladder… CONTINUE READING