Abstract
The mass spectra and the proton magnetic resonance spectra of tetrahydroprotoberberine alkaloids, oxygenated at the 9- and 10-positions, show marked differences from the spectra of those oxygenated at the 10- and 11-positions. These differences may be useful in structural studies on new members of this group of alkaloids.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
100 articles.
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