シダ類の化学とケモタキソノミー(第67報)B環の修飾されたフラバノン'Protofarrerol'とその誘導体の分布について

概要

論文の詳細を見る
A flavanone with a modified B-ring, 'protofarrerol (I)', which is biogenetically unusual and has never been found in any other ferns than Leptorumohra miqueliana H.ITO (Aspidiaceae), was found together with violantin (VI) in the fronds of Monachosorum henryi CHRIST (Pteridaceae). This finding, plus certain morphological features, suggests an alliance of M. henryi to L. miqueliana, and provides a phytochemical support for Christensen's (1938) and Mickel's ideas (1973), that Monachosorum is better placed with the aspidioid ferns on the basis of the morphological resemblance. From the fronds of L. miqueliana two new glycosides (IV and V) were further isolated and identified as 7-O-β-D-glucopyranoside of protofarrerol (I) and leptorumol (II) respectively.
1987-06-25