Abstract: | By the NOE method using13C NMR and UV spectra we have confirmed the structures of four new alkaloids isolated previously: 10-hydroxycanthin-6-one (ervine), 10-methoxycanthine-6-one (methylervine), 10- -D-glucopyranosyloxycanthin-6-one (ervoside), and 6-methoxy- -carbolin-l-ylpropionic acid (ervolanine).All-Union Scientific-Research Institute of Drugs Scientific-Production Association, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 821–824, November–December, 1991. |