Investigation of the rhizomes of Polygonatum sibiricum led to the isolation of the previously reported neoprazerigenin A 3-O-beta-lycotetraoside [3], its methyl proto-type congener 2, and two new steroidal saponins, sibiricosides A [1] and B [4]. The structures have been determined by spectral means and by comparison with literature data and authentic samples.
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Son et al. (1990) studied this question.
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