| Popis: |
Three α- d -galactopyranosylcyclitols previously isolated from soya bean are shown to be 1 d -2- O -(α- d -galactopyranosyl)-4- O -methyl- chiro -inositol, 1 d -5- O -(α- d -galactopyranosyl)-4- O -methyl- chiro -inositol, and 1 d -2- O -(α- d -galactopyranosyl)- chiro -inositol. Assignments of the 13 C-n.m.r. spectra of these compounds and of l l -1- O -(α- d -galactopyranosyl)- myo -inositol (galactinol) are presented. The mass spectra of derivatives prepared by permethylation or perdeuteriomethylation, followed by hydrolysis and acetylation or methylation, are discussed. |
