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Mass spectra of pyrrolizidine alkaloids of the heliotridane series

โœ Scribed by U. A. Abdullaev; Ya. V. Rashkes; Kh. Shakhidoyatov; S. Yu. Yunusov


Book ID
112371701
Publisher
Springer
Year
1972
Tongue
English
Weight
317 KB
Volume
8
Category
Article
ISSN
0009-3130

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Mass spectrometry of some pyrrolizidine
โœ Erling Pedersen; Elfinn Larsen ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 384 KB

The mass spectra of nine pyrrolizidine alkaloids retronecine, heliotridine, 7-angeloylretronecine, 7-angeloylheliotridine, echimidine, heliosupine, lasiocarpine, heliotrine and echinatinewere studied. Particularly the structures of the ions m/e 214,197 and 156 in the spectrum of heliotrine are discu