Abstract: | Conclusions On the basis of the rates of their acid hydrolysis, their optical activities, and their IR spectra, it has been established that the glycosides ofAesculus hippocastanum L. are (SK-1) 3- -L-arabofuranosyloxy-5,7,4 -trihydroxyflavone, (SK-2) 3- -L-rhamnofuranosyloxy-5,7,4 -trihydroxyflavone, (SK-3) 3- -L-arabofuranosyloxy-5,7,3 ,4 -tetrahydroxyflavone, and (SK-4) 3- -L-rhamnofuranosyloxy-5,7,3 ,4 -tetrahydroxyflavone.The glycoside SK-3 is identical with avicularin isolated from the leaves ofPsidium quajava 5]. The complete structures of the other three glycosides have been established for the first time.Khimiya Prirodnykh Soedinenii, Vol. 5, No. 1, pp. 5–7, 1969 |