Abstract: | Summary On the basis of PMR spectra at 100 and 300 MHz, the conformation of the molecule of the alkaloid sophoridine in solution has been determined as A/B-, A/C-, and C/D-trans, B/C-cis, with the chair conformation of rings A and D and the boat conformation of rings B and C.For Communications I–III, see 1].V. I. Lenin Tashkent University. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 744–751, November–December, 1974. |