Zephyranthes flava

Further investigations of the flowers of Amaryllidaceae species has revealed several new alkaloidal phospholipids, 2-O-glycerophosphoryllyco-rine (30), phosphatidyllycorine (31-34), phosphatidyllycorinium metho-cations (35), and phosphatidylpseudolycorine (36-39), respectively, in an extract of the flowers of Zephyranthes flava 107) (Fig. 7). The structures of the alkaloids were established by comprehensive spectroscopic analyses... 

Tazettine (298) has been isolated from Crinum americanum (leaves) (76), C. giganteum (27), Hippeastrum equestre (bulbs) (40), Hippeastrum hybrids (bulbs) (42), Hymenocallis expansa (bulbs and leaves) (48), Lycoris radiata (bulbs) (60), Narcissus tazetta (90), N. cantaricus (whole plants) (65), Pancratium maritinum (bulbs) (96), and Stembergia sicula (whole plants) (103). Pretazettine (300) has been found in N. pallidiflorus (whole plants) (76), N. panizzianus (whole plants) (79) (aerial and bulbs) (80), S. culsiani (bulbs) (102), and Zephyranthes flava (fresh mature seeds) (70S). Tazettine (298), pretazettine (300), littoraline (301), and marconine (302) have been isolated... 

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