N-Cinnamoyltetraketide Derivatives from the Leaves of Toussaintia orientalis Tekijä Nyandoro, Stephen S. Ndanu, Joseph Munissi, Joan J. E. Gruhonjic, Amra Fitzpatrick, Paul A. Landberg, Göran Lu, Yu Wang, Bin Pan, Fangfang Rissanen, Kari Erdélyi, Máté