Light fluorous synthesis of glucosylated glycerol teichoic acids
摘要:
We here describe the synthesis of glucosylated teichoic acid (TA) fragments using two complementary fluorous scaffolds. The use of a perfluorooctylpropylsulfonylethyl (F-Pse) linker in combination with (glucosyl) glycerol phosphoramidite building blocks allows for the assembly of TA fragments with a terminal phosphate mono-ester, whereas the use of a perfluorooctylsuccinyl spacer delivers TA oligomers featuring a terminal alcohol functionality. These complementary linker systems have been developed because the nature of the TA chain terminus can play a role in the biological activity of the synthetic TAs. A novel alpha-glucosylated glycerolphosphoramidite building block is introduced to allow for a robust light fluorous synthetic protocol. (C) 2012 Elsevier Ltd. All rights reserved.
作者:Wouter F. J. Hogendorf、Nico Meeuwenoord、Herman S. Overkleeft、Dmitri V. Filippov、Diana Laverde、Andrea Kropec、Johannes Huebner、Gijsbert A. Van der Marel、Jeroen D. C. Codée
DOI:10.1039/c1cc13132j
日期:——
This communication describes the first automatedsolidphase synthesis of teichoic acids (TAs) and the preparation by this method of a number of well-defined TA structures, which were probed for their antigenicity. An opsonophagocytic killing assay revealed a clear TA-length-activity relationship and indicated a promising candidate for future vaccine development.
Streamlined Synthesis and Evaluation of Teichoic Acid Fragments
作者:Daan van der Es、Francesca Berni、Wouter F. J. Hogendorf、Nico Meeuwenoord、Diana Laverde、Angela van Diepen、Herman S. Overkleeft、Dmitri V. Filippov、Cornelis H. Hokke、Johannes Huebner、Gijsbert A. van der Marel、Jeroen D. C. Codée
DOI:10.1002/chem.201800153
日期:2018.3.15
immunological evaluation cannot be obtained from natural sources. We present here a streamlined automatedsolid-phasesynthesis approach for the rapid generation of well-defined glycosylated, glycerol-based TA oligomers. Building on the use of a "universal" linker system and fluorous tag purification strategy, a library of glycerolphosphate pentadecamers, decorated with various carbohydrate appendages
Light fluorous synthesis of glucosylated glycerol teichoic acids
作者:W.F.J. Hogendorf、A. Kropec、D.V. Filippov、H.S. Overkleeft、J. Huebner、G.A. van der Marel、J.D.C. Codée
DOI:10.1016/j.carres.2012.02.023
日期:2012.7
We here describe the synthesis of glucosylated teichoic acid (TA) fragments using two complementary fluorous scaffolds. The use of a perfluorooctylpropylsulfonylethyl (F-Pse) linker in combination with (glucosyl) glycerol phosphoramidite building blocks allows for the assembly of TA fragments with a terminal phosphate mono-ester, whereas the use of a perfluorooctylsuccinyl spacer delivers TA oligomers featuring a terminal alcohol functionality. These complementary linker systems have been developed because the nature of the TA chain terminus can play a role in the biological activity of the synthetic TAs. A novel alpha-glucosylated glycerolphosphoramidite building block is introduced to allow for a robust light fluorous synthetic protocol. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of an α-kojibiosyl substituted glycerol teichoic acid hexamer
作者:Wouter F.J. Hogendorf、Leendert J. Van den Bos、Herman S. Overkleeft、Jeroen D.C. Codée、Gijsbert A. Van der Marel
DOI:10.1016/j.bmc.2010.03.071
日期:2010.6.1
of an Enterococcus Faecalis teichoic acid (TA) hexamer is presented. The key kojibiosyl-glycerol phosphoramidite buildingblock was obtained by condensation of thioglucose donors, provided with various protecting groups at the C2 hydroxyl function with an orthogonallyprotectedglycerol acceptor. After selective deprotection, the resulting 1,2-cis-linked pseudodisaccharide acceptor was coupled to an
Fluorous Linker Facilitated Synthesis of Teichoic Acid Fragments
作者:Wouter F. J. Hogendorf、Lucien N. Lameijer、Thomas J. M. Beenakker、Herman S. Overkleeft、Dmitri V. Filippov、Jeroen D. C. Codée、Gijsbert A. Van der Marel
DOI:10.1021/ol2033652
日期:2012.2.3
The use of perfluorooctylpropylsulfonylethanol as a new phosphate protecting group and fluorous linker is evaluated in the stepwise solution phase synthesis of a number of biologically relevant (carbohydrate substituted) glycerol teichoic acid fragments. Teichoic acid fragments, up to the dodecamer level, were assembled by means of phosphoramidite chemistry, using a relatively small excess of the building blocks and a repetitive efficient purification procedure of the protected intermediates by fluorous solid phase extraction (F-SPE).