Polyphenols from Several Psammopelitohalophytes
The plants Climacoptera obtusifolia and Kochia prostrata are psammopelitohalophytes that are typically highly tolerant to the soil mechanical composition and have significant resources in Kazakhstan [1, 2]. Therefore, phytochemical research on the aerial part of the Kazakhstan variety of K. prostrata was initiated and studies of the chemical composition of C. obtusifolia were continued [3, 4].
Fractional extraction and adsorption-distribution and gel chromatography isolated pure phenolic compounds 1–8 (1–4 from C. obtusifolia; 5–8, K. prostrata). The compounds were identified using chemical and spectral analyses and comparison with the literature and authentic samples. Compounds 5–8 were observed for the first time in plants of the genus Kochia. Compounds 2–4 were isolated for the first time from plants of the family Chenopodiaceae.
Quercetin 3-O-β-D-Glucopyranosyl-(6→1)-α-L-rhamnopyranoside (rutin) (1). C27H30O16, light-yellow crystals, mp 214–216°C. UV spectrum (MeOH, λmax, nm):...