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Planta Med 2015; 81(10): 847-854
DOI: 10.1055/s-0035-1546127
DOI: 10.1055/s-0035-1546127
Natural Product Chemistry
Original Papers
Lignans from the Fruits of Melia toosendan and Their Agonistic Activities on Melatonin Receptor MT1
Weitere Informationen
Publikationsverlauf
received 05. Dezember 2014
revised 11. März 2015
accepted 22. April 2015
Publikationsdatum:
17. Juni 2015 (online)


Abstract
Investigation on the fruits of Melia toosendan afforded seven new lignans (1–7), along with seventeen known compounds (8–24). The structures of the new compounds, involving four neo-lignans (1–4), two sesquilignans (5–6), and a nor-lignan (7), were elucidated based on extensive spectroscopic analyses (high-resolution electrospray ionization mass spectra, ultraviolet, infrared, one-dimensional and two-dimensional nuclear magnetic resonance). Compound 24 exhibited activity on melatonin receptor type 1 with an agonistic rate of 57.77 % at 1.02 mM according to the assay on HEK293 cell lines in vitro.