中文摘要 |
翼莖粉藤(Cissus pteroclada Hayata)屬於葡萄科(Vitaceae)粉藤屬植物,又名四方藤、翼莖山葡萄。其粗莖具舒筋活絡、去瘀生新之效,用於治風濕疼痛、四肢攣急、跌打內傷等。粉藤屬植物的化學成分被報導含coumarin、flavonoid、steronoid、triterpenoid 及stilbene等多類化合物。本植物的根莖部藥材經乙醇抽取濃縮後,經由管柱層析分離、純化得到十四個化合物,包括五個isocoumarin 類化合物-bergenin (1)、norbergenin (2)、6-O-galloylbergenin (3)、6-O-(4-hydroxy benzoyl) bergenin (4) 與6-O-galloylnorbergenin (5)。除了化合物1、3、4 與gallicacid 外,其他十個化合物均首次分離自本植物。所得各成分的構造係經質譜及核磁共振等光譜資料的分析,並與文獻資料比對鑑定之。對化合物1、3、5 進行抗發炎活性試驗,結果化合物3、5 對嗜中性白血球所引起的超氧自由基生成有良好的抑制效果,其IC50分別為1.94 ± 0.33 與4.08 ± 0.49 μM。Investigation of the roots with stems of Cissus pteroclada Hayata resulted in isolation of fourteen compounds including five isocoumarins, bergenin (1), norbergenin (2), 6-O-galloylbergenin (3), 6-O-(4-hydroxy benzoyl) bergenin (4), and 6-O-galloylnorbergenin (5). The structures of the isolated compounds were identified by spectroscopic analyses and comparison of their spectral data with those in literature. Compounds 1, 3, 5 were evaluated for anti-inflammatory activity. Both 3 and 5 showed potent inhibitory effect on superoxide anion generation with IC50 values of 1.94 ± 0.33 and 4.08 ± 0.49 μM, respectively. |