VI. The structure of donine

A new dimeric alkaloid donine with the composition C₁₉H₂₂N₂O₄ has been isolated from the epigeal part of Arundo donax. On the basis of chemical transformations and UV, IR, mass, PMR, and¹³C NMR spectra the structure of diethyl NN-methylenebis(4-aminobenzoate) is proposed for this alkaloid.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. fax (3712) 89 14 75. Translated from Khimiya Prirodnykh Soedinenii. No. 2, pp. 221–224, March–April, 1996. Original article submitted October 2, 1995.