Synthesis, CI-MS Analyses and Preliminary Biological Evaluation of a Novel Library of Hydrophobic Persulfide-Spacers α-Alkyl Glycosides
作者:Hammed H. Hassan
DOI:10.2174/157017810790796372
日期:2010.3.1
We report the synthesis of novel polyether-based polyols derived from simple glycosides that bear sulfur spacers in the attempt to potentially provide new antibiotics. The CI-MS demonstrated the stepwise and successive fission of the sulfide-spacer groups; however, it does not distinguish between the alditols having different arrangement of O(CH2)(3)-S(CH2)(2)OH groups. The investigated compounds exhibited antimicrobial activities against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and antifungal activities against Candida albicans at a concentration of 1 mg / ml in DMF.
Synthesis of Carbohydrate-Functionalised Sequence-Defined Oligo(amidoamine)s by Photochemical ThiolEne Coupling in a Continuous Flow Reactor
作者:Felix Wojcik、Alexander G. O'Brien、Sebastian Götze、Peter H. Seeberger、Laura Hartmann
DOI:10.1002/chem.201203927
日期:2013.2.25
we report two complimentary strategies for the preparation of such sequence‐defined carbohydrate‐functionalised PAAs that use photochemical thiolene coupling (TEC) as an alternative to the established azide–alkyne cycloaddition (“click”) reaction. In the first approach, PAAs that contained multiple olefins were synthesised on a solid support from a new building block and subsequent conjugation with