The title dimethylacetal 4 and related compounds can be efficiently synthesized by treatment of 6-caprolactone with commercially available dialkyl acetals. Conventional glucosylation using 4 as a glycosyl acceptor gave mainly β-glycosides which were deprotected to give 13. The latter was converted to the corresponding aldehyde 16, which was used as a hapten in conjugation, by reductive amination,
N-(2,2-dimethoxyethyl)-, N-(2,2-diethoxyethyl)-, and N-(4,4-diethoxybutyl)-6-hydroxy hexanamides as new linking agents for carbohydrates and proteins
作者:Jian Zhang、Pavol Kováč
DOI:10.1016/s0040-4039(97)10787-0
日期:1998.3
The title compounds have been conveniently synthesized by the addition reaction of epsilon-caprolactone and the corresponding readily available omega-aminoalkyl dialkyl acetals. The free aldehydes, formed from sugar glycosides bearing the described hexanamides as as aglycons, can be readily linked to proteins by reductive amination to give neoglycoconjugates. (C) 1998 Elsevier Science Ltd. All rights reserved.