The glucosylated monoterpenoids (–)-rhodioloside A and (–)-rhodioloside D from the roseroot (Rhodiola rosea) have been synthesized for the first time. Glucosylation with tetrapivaloylglucosyl bromide proved superior to the use of tetraacetylglucosyl bromide or glucosyl iodides. Acid-catalyzed cyclization of a homoglycidol-type geraniol derivative afforded the monoterpenoid tetrahydrofuran (+)-sachalinol
首次合成了来自蔷薇根(Rhodiola rosea)的
葡萄糖基化单萜(-)-
红景天苷A和(-)-
红景天苷D。用四新戊酰
葡糖基
溴进行
葡糖基化证明优于使用四乙酰
葡糖基
溴或
葡糖基
碘。高
缩水甘油型
香叶醇衍
生物的酸催化环化得到来自红景天的单
萜类四氢呋喃 (+)-sachalinol C。(+)-sachalinol C 的绝对构型需要修改。还获得了 (-)-Sachalinol A 和 (-)-sachalinol B。