Chang Chia-Chuan, Lien Yu-Chin, Liu Karin C S Chen, Lee Shoei-Sheng
School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, ROC.
Phytochemistry. 2003 Aug;63(7):825-33. doi: 10.1016/s0031-9422(03)00371-6.
Chemical investigation on the aerial and the root parts of Phyllanthus urinaria L. culminated in the isolation of four lignans, namely 5-demethoxyniranthin, urinatetralin, dextrobursehernin, urinaligran, together with nine known lignans. Their structures, including the absolute stereochemistry, were elucidated by spectral analysis (NMR and CD) and chemical correlation.