Lajis N H, Abdullah A S, Salim S J, Bremner J B, Khan M N
Department of Chemistry, Universiti Pertanian Malaysia, Selangor D. E.
Steroids. 1993 Aug;58(8):387-9. doi: 10.1016/0039-128x(93)90043-m.
Spectroscopic examination of purified extracts of the rumen content of sheep intoxicated by Brachiaria decumbens revealed the presence of two spirostanes, identified as epi-sarsasapogenin and epi-smilagenin. Sarsasapogenone was obtained by the oxidation of sarsasapogenin. The reduction of sarsasapogenone using lithium aluminum hydride yielded isomeric products, sarsasapogenin (20%) and epi-sarsasapogenin (80%).
对被俯仰臂形草中毒的绵羊瘤胃内容物的纯化提取物进行光谱检查，发现存在两种螺旋甾烷，鉴定为表-菝葜皂苷元（epi-sarsasapogenin）和表-白藜芦醇苷元（epi-smilagenin）。菝葜皂苷元通过菝葜皂苷元的氧化获得。使用氢化铝锂还原菝葜皂苷元产生异构体产物，菝葜皂苷元（20%）和表-菝葜皂苷元（80%）。
