34 シダ植物成分 : クジャクシダのトリテルペノイド,Adipedatolその他の構造

概要

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From the leaves of Northern Maidenhair Fern, Adiantum pedatum LINN. collected in Japan, four triterpenoid hydrocarbons, isofernene(I), fernene (II), 7-fernene(III) and filicene(IV), a triterpenoid enal, named filicenal(VI), a nor-triterpenoid ketone, adiantone(VII), and a nor-triterpenoid hemiketal, named adipedatol(VIII) were isolated as shown in Table I. The structure of two new compounds, adipedatol and filicenal, have been established as formulated by VIII and VI, respectively. The NMR spectra (Table II) and Mass analysis of adipedatol (VIII) and its derivatives suggested that VIII has a 30-nor-hopane skelton having oxygen functions at C(28) and C(22). This was confirmed by chemical evidences as shown in Chart 1, especially deriving to 30-nor-21αH-hopane (XV). The structure VI for filicenal was also demonstrated by spectroscopic methods and confirmed by chemical evidence.
天然有機化合物討論会の論文
1966-09-15