Synthesis of water-soluble N-Acetyl-L-cysteine conjugates of naphtazarin (5,8-Dihydroxy-1,4-naphthoquinone) derivatives
作者:Yu. E. Sabutskii、N. S. Polonik、V. A. Denisenko、P. S. Dmitrenok、S. G. Polonik
DOI:10.1134/s1070428013080101
日期:2013.8
Base-catalytic condensation of N-acetyl-L-cysteine with substituted naphthazarins was first obtained a series of mono-, di-, tri- and tetra-substituted S-aminoacid naphthazarin conjugates bearing alkyl (hydroxy) groups. It was shown that three- and tetra-N-acetyl-L-cysteine naphthazarin derivatives are readily soluble in water.
Synthesis and properties of water-soluble 5,8-dihydroxy-1,4-naphthoquinone thioglucosides structurally related to echinochrome
作者:S. G. Polonik
DOI:10.1134/s1070428009100091
日期:2009.10
Acetylated hydroxynaphthazarin di- and trithioglucosides structurally related to echinochrome were synthesized. Their deacetylation by the action of sodium methoxide in methanol and the effect of hydroxy groups on this process were studied. Water-soluble echinochrome thioglucosides were synthesized for the first time.