jervine/バイモ属

Methods based on triple quadrupole tandem mass spectrometry have been widely used and reported as highly selective and sensitive methods for quantifying substances of herbal medicines. However, most of them were limited to targeted components, due to the difficulties to optimize the multiple

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

Two new isosteroid alkaloids, N-methyl-22,26-imino-13,22-oxido-5alpha,20alpha-jervine-3beta-ol-6-one, pengbeimine B (1) and N-methyl-22,26-imino-13,22-oxido-5alpha,20beta-jervine-3beta-ol-6-one, pengbeimine D (2) were isolated from the fresh bulbs of Fritillaria monatha Migo. Their structures were

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