2190 During our studies on the constituents of a mistletoe, 100 Viscum album Linn. var. coloratam Ohwi, we isolated a new cyclic peptide and named it viscumamide. The mistletoe which occurred on a hackberry (Celtis 50- sinmsis Pers. var. japonica Nakai) was collected and [V0]. 46, No. 7 BULLETIN OF THE CHEMICAL SOCIETY or JAPAN, VOL. 46, 2190—2193 (1973) Chemical Studies on the Mistletoe. II.“ The Structure of Viscumamide, a New Cyclic Peptide Isolated ...