Synthesis and crystal structure poly[aqua(μ₃-2-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)ammonio)acetate-κ⁴ O,O′:O′′:O′′′) sodium] monohydrate, C₁₈H₁₈NNaO₁₁S

Abstract

C18H18NNaO11S, triclinic, P1̅ (no. 2), a = 8.2627(12) Å, b = 8.6490(11) Å, c = 14.1791(17) Å, α = 82.883(10)°, β = 76.954(12)°, γ = 69.729(12)°, V = 924.8(2) Å3, Z = 2, Rgt(F) = 0.0574, wRref(F2) = 0.1609, T = 293(2) K.

Synthesis and crystal structure of 5-(8-(((2-carboxyethyl)ammonio)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate trihydrate, C19H23NO12S

“…The Mannich reaction has been considered as an effective method in introducing aminomethyl substituents into the desired flavonoide molecules to improve their biological activities [8][9][10][11][12][13][14]. Our previous investigations showed that DSS can react with glycine, L-proline, L-Threonine by Mannich reaction [15][16][17]. The reaction takes place without a catalyst.…”

“…the figure). The bond distances and bond angles are in normal ranges [15][16][17]. The atoms of the chromen moiety constitute planar rings A (C1-C6) and C (C7-C9/O3/C5/C4) [mean out-of plane deviations are 0.0056 and 0.0144 Å, respectively], with an interplanar angle of 1.9°.…”