Two New Pairs of Epimeric Pyrrolizidine Alkaloids from Liparis nervosa
Chemistry of Natural Compounds
2019.0
Abstract
Two new pairs of epimeric pyrrolizidine alkaloids, nervosine XVI/XVII and XVIII/XIX were isolated from the whole plant of Liparis nervosa. Their structures were elucidated by extensive spectroscopic analyses including 1D, 2D NMR, and HR-ESI-MS.