Chemical constituents from Pothos chinensis
JI Ming-chang;XIAO Shi-ji;JIANG Shun-yuan;GUO Da-le;ZHOU Yan;DING Li-sheng;Sichuan Academy of Traditional Medicine Sciences;Luzhou Medical College;Chengdu Institute of Biology, Chinese Academy of Sciences;
Objective To investigate the chemical constituents in the whole herbs of Pothos chinensis. Methods The chemical constituents were isolated and purified by various column chromatographic methods and preparative HPLC. Their structures were identified by physicochemical properties and spectral analyses. Results Seventeen compounds were isolated from the methanol extract and identified as N-trans-cinnamoyltyramine(1), N-trans-p-coumaroyltyramine(2), N-cis-p-coumaroyltyramine(3), N-transferuloyltyramine(4), N-cis-feruloyltyramine(5), loliolide(6), dehydrovomifoliol(7),(3S, 5R, 8R, 9R)-5, 8-epoxy-6-megastigmene-3, 9-diol(8),(3R, 6R, 7E)-3-hydroxy-4, 7-megastigmadien-9-one(9),(3R)-4-[(2R, 4S)-2-hydroxy-2, 6, 6-trimethylcyclohexylidene]-3-buten-2-oneiol(10), 7-methoxycoumarine(11), imperatorin(12), 7-hydroxy-8-methoxycoumarin(13), 6-hydroxy-7-methoxycoumarin(14), indole-3-aldehyde(15),(-)-medioresinol(16), and daidzein(17). Conclusion All the compounds are isolated from the plants in Pothos L. for the first time.