A new flavonoid glucoside with a known one was isolated from the leaves of Cassia angustifolia. Based on the spectral analysis, including MS, ^1H NMR, ^13C NMR, DEPT, ^1H-1HCOSY, HMQC, HMBC and NOSEY, their chemical s...A new flavonoid glucoside with a known one was isolated from the leaves of Cassia angustifolia. Based on the spectral analysis, including MS, ^1H NMR, ^13C NMR, DEPT, ^1H-1HCOSY, HMQC, HMBC and NOSEY, their chemical structures were determined as kaempferol-3-O-[（6＇＇＇-O-trans-sinnapoyt）-β-D-glucopyranosyl （1 → 6）]-β-D-glucopyranoside 1 and apigenin-6,8-di-C-glycoside 2.展开更多
从芒果属植物扁桃(Mangifera persiciformis C.Y.Wu et T.L.Ming)叶乙醇提取物乙酸乙酯萃取部位中分离得到7个化合物,经波谱鉴定为没食子酸甲酯(1),没食子酸(2),3,4-二羟基苯甲酸(3),槲皮素(4),山奈酚-3-O-β-D-葡萄糖苷(5),槲皮素-3-O-...从芒果属植物扁桃(Mangifera persiciformis C.Y.Wu et T.L.Ming)叶乙醇提取物乙酸乙酯萃取部位中分离得到7个化合物,经波谱鉴定为没食子酸甲酯(1),没食子酸(2),3,4-二羟基苯甲酸(3),槲皮素(4),山奈酚-3-O-β-D-葡萄糖苷(5),槲皮素-3-O-β-D-葡萄糖苷(6)和芒果苷(7)。其中化合物1、3、5、6为首次从该植物中分离得到。展开更多
文摘A new flavonoid glucoside with a known one was isolated from the leaves of Cassia angustifolia. Based on the spectral analysis, including MS, ^1H NMR, ^13C NMR, DEPT, ^1H-1HCOSY, HMQC, HMBC and NOSEY, their chemical structures were determined as kaempferol-3-O-[（6＇＇＇-O-trans-sinnapoyt）-β-D-glucopyranosyl （1 → 6）]-β-D-glucopyranoside 1 and apigenin-6,8-di-C-glycoside 2.
文摘从芒果属植物扁桃(Mangifera persiciformis C.Y.Wu et T.L.Ming)叶乙醇提取物乙酸乙酯萃取部位中分离得到7个化合物,经波谱鉴定为没食子酸甲酯(1),没食子酸(2),3,4-二羟基苯甲酸(3),槲皮素(4),山奈酚-3-O-β-D-葡萄糖苷(5),槲皮素-3-O-β-D-葡萄糖苷(6)和芒果苷(7)。其中化合物1、3、5、6为首次从该植物中分离得到。
