Bryoflavone and Heterobryoflavone, Two New Isoflavone-flavone Dimers from Bryum capillare

Abstract

From the moss Bryum capillare (Bryaceae) two new biflavonoids-bryoflavone and hetero ­ bryoflavone - have been isolated. They are the first examples of a new class of biflavonoids formed by oxidative coupling of a flavone and an isoflavone moiety. The structures of both compounds are proved spectroscopically.