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veratramine/fritillaria
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Puqienine F, a novel veratramine alkaloid from the bulbs of Fritillaria puqiensis.
Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
A novel veratramine alkaloid, called puqienine F (1) and possessing a 12,16-epoxy ring, was isolated from the bulbs of Fritillaria puqiensis G. D. Yu et G. Y. Chen (Liliaceae). The structure was elucidated by extensive spectral and X-ray crystallographic analyses.
New steroidal alkaloids from the bulbs of Fritillaria puqiensis.
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Prijava / prijava
Six new steroidal alkaloids, namely puqienines C-E (1-3), puqiedine (4), 3alpha-puqiedin-7-ol (5), and puqietinedione (6), along with two known steroidal alkaloids puqiedinone (7) and peimisine (8), were isolated from the bulbs of Fritillaria puqiensis G.D. Yu et G.Y. Chen (Liliaceae). Their
Characterization and identification of steroidal alkaloids in Fritillaria species using liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry.
Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
Liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (LC/ESI-QTOF-MS/MS) was performed to study the fragmentation behaviors of steroidal alkaloids from Fritillaria species, the antitussive and expectorant herbs widely used in traditional
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