Minor indoloquinolizidine monoterpene alkaloids from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla
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Six minor undescribed indoloquinolizidine monoterpene alkaloids, uncarrhynchophyllines F - K (1 - 6), were isolated from an aqueous decoction of the hook-bearing stems of Uncaria rhynchophylla (gou-teng). Their structures were determined by spectroscopic data ... ...
