A Major Saponin from Leaves Extract of Acer velutinum

Michal Glenska, Maciej Wlodarczyka, Carla Bassarellob, Cosimo Pizzab, Piotr Stefanowiczc, and Marta Świtalskad a Department of Pharmacognosy, WroclawMedical University, Nankiera 1, 50-140 Wroclaw, Poland b Universito Ricercatore di Biologia Farmaceutica Dipartimento di Scienze Farmaceutiche Universita degli studi di Salerno, via Ponte don Melillo, 84084 Fisciano, Italy c Faculty of Chemistry, Wroclaw University, F. Joliot-Curie 14, 50-383 Wroclaw, Poland d Department of Experimental Oncology, Institute of Immunology and Experimental Therapy, 12 R. Weigla St., 53-114 Wroclaw, Poland