J. Dostal et al., SANGUINARINE PSEUDOBASE - REEXAMINATION OF NMR ASSIGNMENTS USING GRADIENT-ENHANCED SPECTROSCOPY, Magnetic resonance in chemistry, 36(11), 1998, pp. 869-872
The formation of sanguinarine pseudobase (6-hydroxydihydrosanguinarine
) was studied by 1D and 2D NMR spectroscopy. The unequivocal evidence
of a hemiaminal OH group and unambiguous H-1, C-13 and N-15 NMR assign
ments of this compound are discussed. (C) 1998 John Wiley & Sons, Ltd.