
Tetrahedron p. 7833 - 7842 (1997)
Update date:2022-08-03
Topics:
Prasain, Jeevan Kumar
Tezuka, Yasuhiro
Li, Jian Xin
Tanaka, Ken
Basnet, Purusotam
Dong, Hui
Namba, Tsuneo
Kadota, Shigetoshi
Six novel diarylheptanoids bearing chalcone or flavanone moiety (1-6) were isolated from the seeds of Alpinia blepharocalyx K. Schum. Their structures were determined by spectroscopic analysis. Stereo-chemical assignment of diarylheptanoid part of these compounds was done by NMR spectral analysis of their MTPA esters. These compounds inhibited nitric oxide (NO) production in endotoxin-activated murine macrophages, J774.1.
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(1997)