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paris vietnamensis/saponin

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GreinarKlínískar rannsóknirEinkaleyfi
3 niðurstöður

New Steroidal Saponins from the Rhizomes of Paris vietnamensis and Their Cytotoxicity.

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Four new spirostanol saponins, named pavitnosides A-D (1-4), with six known steroidal saponins 5-10 were isolated from the rhizomes of Paris vietnamensis. Their chemical structures were determined based on extensive spectroscopic studies and chemical methods. The aglycones of pavitnoside B and
Glioblastoma is one of the most difficult cancers to treat with a 5-year overall survival rate less than 5%. Temozolomide (TMZ) is an effective drug for prolonging the overall survival time of patients, while drug-resistance is an important clinical problem at present.

[Separation and identification of active constituents of Paris vietnamensis].

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OBJECTIVE To study the anti-tumor bioactive steroid saponins of Paris vietnamensis (Takht.). METHODS The constituents were isolated and purified by chromatography and their structures were identified by spectral analysis and physicochemical properties. The cytotoxic bioactivities of the constituents
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