作者:Constantinos G. Neochoritis、Ehsan Ghonchepour、Maryam Kazemi Miraki、Tryfon Zarganes-Tzitzikas、Katarzyna Kurpiewska、Justyna Kalinowska-Tłuścik、Alexander Dömling
DOI:10.1002/ejoc.201801588
日期:2019.1.10
Crystal structures of sugar formamides and isocyanides of mono‐, di‐ and trisaccharides were analyzed, revealing useful structural information. Trends were obtained which were utilized in the design and synthesis of glycosyl adducts bearing macrocycle, lactone and indole derivatives
Synthesis of sugar-derived isoselenocyanates, selenoureas, and selenazoles
作者:Óscar López、Susana Maza、Víctor Ulgar、Inés Maya、José G. Fernández-Bolaños
DOI:10.1016/j.tet.2009.01.038
日期:2009.3
Aryl, alkyl, and sugar-derived isoselenocyanates were prepared by a one-pot procedure starting from the corresponding formamides, using triphosgene as a dehydrating agent, triethylamine, and black selenium powder. The preparation of sugar selenoureas by coupling of O-protected sugar-derived isoselenocyanates with different amines, and by coupling of unprotected glycopyranosyl amines with phenyl isoselenocyanate
Two-Step Synthesis of Complex Artificial Macrocyclic Compounds
作者:Rudrakshula Madhavachary、Eman M. M. Abdelraheem、Arianna Rossetti、Aleksandra Twarda-Clapa、Bogdan Musielak、Katarzyna Kurpiewska、Justyna Kalinowska-Tłuścik、Tad A. Holak、Alexander Dömling
DOI:10.1002/anie.201704426
日期:2017.8.28
the Ugi‐reaction has been developed. This syntheticapproach of just two steps is unprecedented, short, efficient and works over a wide range of medium (8–11) and macrocyclic (≥12) loop sizes. The substrate scope and functional group tolerance is exceptional. Using this approach, we have synthesized 39 novel macrocycles by two or even one single synthetic operation. The properties of our macrocycles
A study of methods for the synthesis of urea and carbamate glycosides, starting with unprotective carbohydrates, led to the preparation of amino acid-carbohydrate conjugates in aqueous media.
various acids and isocyanides. A library of densely functionalized glycomimetics bearing up to 3 carbohydrate units was obtained in high yields and diastereoselectivities. The configuration of the newly formed stereocenter was determined and the diastereoselectivity was rationalized by DFT calculations.