Poly[3-(3,4-dihydroxyphenyl)glyceric acid] from Anchusa italica roots.
Elucidation of the main structural unit of a water-soluble, high-molecular weight preparation from the crude polysaccharides of Anchusa italica Retz. roots has been carried out. According to 13C NMR, 1H NMR and 2D heteronuclear 1H/13C HSQC spectral data, the main structural element of the high-molecular, water-soluble preparation was a regularly substituted polyoxyethylene chain, namely poly[oxy-1-carboxy-2-(3,4-dihydroxyphenyl)ethylene]. Most carboxylic groups of this caffeic acid-derived polymer of A. italica are methylated.
Barbakadze
Vakhtang
V
I. Kutateladze Institute of Pharmacochemistry, 36 P. Sarajishvili str., 0159 Tbilisi, Georgia. v_barbakadze@hotmail.com
Gogilashvili
Lali
L
Amiranashvili
Lela
L
Merlani
Maia
M
Mulkijanyan
Karen
K
Churadze
Manana
M
Salgado
Antonio
A
Chankvetadze
Bezhan
B
D028082:Boraginaceae / Q000737:chemistry*; D005988:Glyceric Acids / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry*
D005988:Glyceric Acids; D011134:Polysaccharides; C042971:glyceric acid