AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. ...AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. RESULTS Four phenolic acids have been isolated from the ether extract. They have been identified as protocatechuic acid(Ⅰ), protocatechuic aldehyde(Ⅱ), gentisic acid(Ⅲ), and isovanillic acid(Ⅳ). CONCLUSION Compound Ⅲ and Ⅳare isolated from Ilex L. for the first time.展开更多
描述了湖南冬青一新种,壶果冬青(Ilex urceolatus C.B.Shang,K.S.Tang et D.Q.Du,sp.nov.)该种与细刺冬青(I.hylonoma Hu et Tang)和华中刺冬青(I.centrochinensis S.Y.Hu)有些相似,但其具有独特的特征与后两种有明显的区别,主要...描述了湖南冬青一新种,壶果冬青(Ilex urceolatus C.B.Shang,K.S.Tang et D.Q.Du,sp.nov.)该种与细刺冬青(I.hylonoma Hu et Tang)和华中刺冬青(I.centrochinensis S.Y.Hu)有些相似,但其具有独特的特征与后两种有明显的区别,主要是新种叶缘波状,两側具10-19对尖锐细刺,果较大,宽912 mm,长11-17 mm,呈壶形,不为球形或近球形。该种发现于湖南涟源市金石镇栗坪村,2009年11月8日由杜多青和唐开山采集。模式标本(Hol-otype 2009118,NF)保存在南京林业大学标本室。展开更多
文摘AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. RESULTS Four phenolic acids have been isolated from the ether extract. They have been identified as protocatechuic acid(Ⅰ), protocatechuic aldehyde(Ⅱ), gentisic acid(Ⅲ), and isovanillic acid(Ⅳ). CONCLUSION Compound Ⅲ and Ⅳare isolated from Ilex L. for the first time.
文摘描述了湖南冬青一新种,壶果冬青(Ilex urceolatus C.B.Shang,K.S.Tang et D.Q.Du,sp.nov.)该种与细刺冬青(I.hylonoma Hu et Tang)和华中刺冬青(I.centrochinensis S.Y.Hu)有些相似,但其具有独特的特征与后两种有明显的区别,主要是新种叶缘波状,两側具10-19对尖锐细刺,果较大,宽912 mm,长11-17 mm,呈壶形,不为球形或近球形。该种发现于湖南涟源市金石镇栗坪村,2009年11月8日由杜多青和唐开山采集。模式标本(Hol-otype 2009118,NF)保存在南京林业大学标本室。