Study of anti-oxidant phenolic compounds from stem barks of Morus yunanensis / 中国中药杂志

<p><b>OBJECTIVE</b>To study anti-oxidant phenolic compounds from stem barks of Morus yunanensis.</p><p><b>METHOD</b>Isolation and purification were carried out by silica gel, Sephadex LH -20 and RP - 18 column chromatography. The chemical structures of constituents were elucidated on the basis of physicochemical properties and spectral data.</p><p><b>RESULT</b>Eight phenolic compounds were isolated and identified as: mulberrofuran E (1), mulberrofuran K (2), albanol B (3), kuwanon H (4), resveratrol (5), moracin M (6), morachalcone A (7), 3', 5', 2, 4-tetrahydroxy-4-(3-methyl-1-butenyl) stilbene (8).</p><p><b>CONCLUSION</b>All the compounds were isolated from the plant for the first time, and compounds 2, 3, 6, 8 showed potent anti-oxidation activities.</p>

Chemical constituents from Faeces bombycis / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents from Faeces bombycis.</p><p><b>METHOD</b>Isolation and purification were carried out on silic gel, Sephadex LH-20 and RP-18 column chromatography. The chemical structures of the constituents were elucidated on the basis of physicochemical properties and spectral data.</p><p><b>RESULT</b>Fifteen compounds were identified as 3S, 5R-dihydroxy-6R, 7-megstigmadien-9-one (1), 3S, 5R-dihydroxy-6S, 7-megstigmadien-9-one (2), (6R, 9R)-3-oxo-alpha-ionol-beta-D-glucopyranoside (3), (6R, 9S)-3-oxo-alpha-ionol-beta-D-glucopyranoside (4), blumenol C glucoside (5), byzantionoside B (6), alangionoside L (7), lutein (8), pipecolic acid (9), betaine (10), alanine (11), glutamic acid (12), phenylalanine (13), leucine (14), isoleucine (15).</p><p><b>CONCLUSION</b>All the compounds were separated from Faeces bombycis for the first time.</p>