| Abstract: | The main component of the polyphenolic complex has been isolated from the leaves of two species of sumac (Rhus glabra andRh. typhina) and for this we have proposed the structure of 3,6-bis-O-digalloyl-1,2,4-tri-O-galloyl- -D-glucose. A high interferon-inducing and antitumoral activity of the substance isolated has been found. In addition to catechins, 3 ,4,6-trihydroxyaurone has been tisolated from sumac stems.A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax 627071. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 45–48, January–February, 1994. |
