- Synthesis and antioxidant activity of a novel class of 4,6-O-protected O-glycosides and their utility in disaccharide synthesis.
Synthesis and antioxidant activity of a novel class of 4,6-O-protected O-glycosides and their utility in disaccharide synthesis.
Carbohydrate research (2010-06-29)
Ramanathan Rajaganesh, Jayaraman Jayakumar, Chandrasekaran Sivaraj, Nanjian Raaman, Thangamuthu Mohan Das
PMID20579978
ABSTRACT
BF(3).Et(2)O-catalysed O-glycosylation of 1,2,3-tri-O-acetyl-4,6-O-butylidene- and ethylidene-beta-d-glucopyranose with different aliphatic and aromatic alcohols proceeds for the most part with complete retention of anomeric configuration. Antioxidant activity of O-glycosides shows significant inhibition (IC(50) approximately 77%). 1,3-Dipolar cycloaddition of terminal alkyne derivatives of O-glycosides with glycosyl azide results in disaccharides.
MATERIALS
Product Number
Brand
Product Description
Supelco
Boron trifluoride - 1-butanol solution, ~10% in 1-butanol (∼1.3 M), for GC derivatization, LiChropur™