Synthesis of an antimetastatic tetrasaccharide β-d-Gal-(1→4)-β-d-GlcpNAc-(1→6)-α-d-Manp-(1→6)-β-d-Manp-OMe
摘要:
An antimetastatic tetrasaccharide T-1, beta-D-Gal-(1 -> 4)-beta-D-GlcpNAc-(1 -> 6)-alpha-D-Manp-(1 -> 6)-beta-D-Manp-OMe, was synthesized with two approaches. The first approach was a conventional method employing thioglycoside and Koenigs-Knorr glycosylation reaction in 24% overall yield. The second one was a novel route through the azidoiodo-glycosylation strategy by using 2-iodo-2-deoxylactosyl azide as the donor in 36% overall yield. (C) 2012 Zhong Jun Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Synthesis of an antimetastatic tetrasaccharide β-d-Gal-(1→4)-β-d-GlcpNAc-(1→6)-α-d-Manp-(1→6)-β-d-Manp-OMe
摘要:
An antimetastatic tetrasaccharide T-1, beta-D-Gal-(1 -> 4)-beta-D-GlcpNAc-(1 -> 6)-alpha-D-Manp-(1 -> 6)-beta-D-Manp-OMe, was synthesized with two approaches. The first approach was a conventional method employing thioglycoside and Koenigs-Knorr glycosylation reaction in 24% overall yield. The second one was a novel route through the azidoiodo-glycosylation strategy by using 2-iodo-2-deoxylactosyl azide as the donor in 36% overall yield. (C) 2012 Zhong Jun Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.