Chemical synthesis of 4-azido-β-galactosamine derivatives for inhibitors of N -acetylgalactosamine 4-sulfate 6- O -sulfotransferase
GLYCOCONJUGATE JOURNAL(2018)
摘要
Chondroitin sulfate E (CS-E) plays a crucial role in diverse processes ranging from viral infection to neuroregeneration. Its regiospecific sulfation pattern, generated by N -acetylgalactosamine 4-sulfate 6- O -sulfotransferase (GalNAc4S-6ST), is the main structural determinant of its biological activity. Inhibitors of GalNAc4S-6ST can serve as powerful tools for understanding physiological functions of CS-E and its potential therapeutic leads for human diseases. A family of new 4-acylamino-β-GalNAc derivatives and 4-azido-β-GalNAc derivatives were synthesized for their potential application as inhibitors of GalNAc4S-6ST. The target compounds were evaluated for their inhibitory activities against GalNAc4S-6ST. The results revealed that 4-pivaloylamino- and 4-azido-β-GalNAc derivatives displayed evident activities against GalNAc4S-6ST with IC 50 value ranging from 0.800 to 0.828 mM. They showed higher activities than benzyl D-GalNAc4S that was used as control.
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关键词
Sulfotransferase,N-Acetylgalactosamine 4-sulfate 6-O-sulfotransferase,Inhibitor,Chemical synthesis
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