从葱属植物韭(Allium tuberosum ex spreng)的种子中,首次分得一种皂甙成份(Tf)。经化学检测和光谱分析,推断其结构为一种双糖链的呋甾烷醇皂甙。甙元为知母皂甙元(sarsasapogenin).在C_(26),C_3位上和糖链相连。实验证明,韭子皂甙有杀...从葱属植物韭(Allium tuberosum ex spreng)的种子中,首次分得一种皂甙成份(Tf)。经化学检测和光谱分析,推断其结构为一种双糖链的呋甾烷醇皂甙。甙元为知母皂甙元(sarsasapogenin).在C_(26),C_3位上和糖链相连。实验证明,韭子皂甙有杀灭钉螺的作用。展开更多
AIM:To synthesize pyranoisoflavonids compound--alpinumisoflavone with molluscicidal activity. METHOD:Polyhydric phenols and p substituted phenylacetic acid derivatives was used as the major reactants to synthesis the ...AIM:To synthesize pyranoisoflavonids compound--alpinumisoflavone with molluscicidal activity. METHOD:Polyhydric phenols and p substituted phenylacetic acid derivatives was used as the major reactants to synthesis the target compounds by multi step synthesis. RESULT:The target compound structure were comfirmed by physicial constant and 1H NMR spectrum. The total yield of three steps reaction is 31%.Alpinumisoflavone has been synthesized for supplying sample for biological screening. CONCLUSION:It is a stable and readily accessible routine for synthesis of dimethylchromens of Alpinumisoflavone and its derivatives while 3 Hydroxy 3 methyl 1,1 dimethoxybutane was used as dimethylchromenylation reagent.展开更多
文摘AIM:To synthesize pyranoisoflavonids compound--alpinumisoflavone with molluscicidal activity. METHOD:Polyhydric phenols and p substituted phenylacetic acid derivatives was used as the major reactants to synthesis the target compounds by multi step synthesis. RESULT:The target compound structure were comfirmed by physicial constant and 1H NMR spectrum. The total yield of three steps reaction is 31%.Alpinumisoflavone has been synthesized for supplying sample for biological screening. CONCLUSION:It is a stable and readily accessible routine for synthesis of dimethylchromens of Alpinumisoflavone and its derivatives while 3 Hydroxy 3 methyl 1,1 dimethoxybutane was used as dimethylchromenylation reagent.
