Alkaloids of the flowers of Hippeastrum vittatum.
Investigation of an ethanolic extract of the fresh flowers of Hippeastrum vittatum yielded the new alkaloids vittacarboline (1) and O-methylismine (3), together with the known compound ismine (2). The structures of 1--3 were established by spectroscopic methods including one- and two-dimensional NMR and mass spectrometry.
Youssef
D T
DT
Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt. youssefdiaa@hotmail.com
D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D004534:Egypt; D005663:Furans / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D000470:Alkaloids; D005663:Furans; C433665:O-methylismine; C433666:vittacarboline