A short-term reaction (<15 min) synthesized 3(II)-O-alpha-glucosyl-maltose and maltotriose, indicating alpha-1,3-/alpha-1,4-transferring specificity. A long-term reaction (<24 h) accumulated kojibiose and nigerose using formed glucose as an acceptor substrate. AgdA and AgdB are distinct ...
The syntheses of several alpha-linked thioglycosidic disaccharides are described, including thiokojibiose octaacetate (1), thionigerose (2), and thioisomaltose (3). The title compounds were synthesized by coupling 2,3,4,6-tetra-O-acetyl-1.5-acetyl-1-thio-alpha-D-glucopyranose (4) with either...