酸漿根のアルカロイド研究(第2報)
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Five kinds of alkaloids were isolated from the root of Physalis alkekengi L.var.francheti HORT. forma bunyardii MAKINO besides 3α-tigloyloxytropane (I) which was formerly isolated.^<1)> Alkaloids II, III, and IV were determined as tigloidine (II), tropine (III), and pseudotropide (IV). The structure of alkaloid V was confirmed as 3α-tigloyloxytropane N-oxide by both chemical reaction and synthesis. This N-oxide-type alkaloid has been unknown in natural tropane alkaloids. Alkaloid VI could not be clarified due to its small amount. A convenient synthetic method for nortropine from tropine N-oxide was also established.
- 公益社団法人日本薬学会の論文
- 1974-09-25
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