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Two New C21 Steroidal Glycosides from the Roots of Cynanchum paniculatum

Hai-Li Yu1,2, Qin Long1,2, Wen-Fang Yi1,2

  • 1State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.

Natural Products and Bioprospecting
|April 28, 2019
PubMed

Keywords:
BioactivitiesCynanchum paniculatumNMR dataSteroidal glycosides

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The root locus method is an invaluable tool for analyzing higher-order systems without needing to factor the denominator of the transfer function. A pole of the system is identified when the characteristic polynomial in the transfer function's denominator equals zero.
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