Asterosaponins from the starfish Culcita novaeguineae and their bioactivities.

  title={Asterosaponins from the starfish Culcita novaeguineae and their bioactivities.},
  author={Hai-feng Tang and Yang-hua Yi and Gangyi Yang and Peng Sun and San-qi Zhang and Yue-ping Zhao},
  volume={77 1},
Bioassay-guided fractionation of the n-BuOH extract of the starfish Culcita novaeguineae resulted in the isolation of one new sulfated steroidal glycoside (asterosaponin) (1), along with three known asterosaponins, thornasteroside A (2), marthasteroside A(1) (3) and regularoside A (4), as active compounds causing morphological abnormality of Pyricularia oryzae mycelia. Their structures were elucidated by extensive spectral studies and chemical evidences. All the saponins showed moderate… CONTINUE READING

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