Synthesis of the oligosaccharide domain of acarbose was reinvestigated and was optimally performed using a maltosidic acceptor, already bearing a alpha-D-Glc-(1-->4)-D-Glc bond, and a new D-fucopyranosyl donor. The crucial glycosylation step was improved by varying three different parameters and notably by focusing on the C-4 protecting group of the fucosyl residue, solvent and promoter. The resulting
PROBES AND METHODS OF IMAGING A BACTERIAL INFECTION
申请人:The Board of Trustees of the Leland Stanford Junior University
公开号:US20140314671A1
公开(公告)日:2014-10-23
Embodiments of the present disclosure provide for labeled probes such as labeled maltose probes and labeled acarbose probes, methods of making labeled probes, pharmaceutical compositions including labeled probes, methods of using labeled probes, methods of diagnosing, localizing, monitoring, and/or assessing bacterial infections, using labeled probes, kits for diagnosing, localizing, monitoring, and/or assessing bacterial infections, using labeled probes, and the like.
Design, Synthesis, and Biological Evaluation of Novel Carbohydrate-Based Sulfamates as Carbonic Anhydrase Inhibitors
作者:Marie Lopez、Jonathan Trajkovic、Laurent F. Bornaghi、Alessio Innocenti、Daniela Vullo、Claudiu T. Supuran、Sally-Ann Poulsen
DOI:10.1021/jm101525j
日期:2011.3.10
Carbonic anhydrases (CAs) IX and XII are enzymes with newly validated potential for the development of personalized, first-in-class cancer chemotherapies. Here we present the design and synthesis of novel carbohydrate-based CA inhibitors, several of which were very efficient inhibitors (K-i < 10 nM) with good selectivity for cancer-associated CA isozymes over off-target CA isozymes. All inhibitors comprised a carbohydrate core with one hydroxyl group derivatized as a sulfamate. Five different carbohydrates were chosen to present a selection of molecular shapes with subtle stereochernical differences to the CA enzymes active site. Variable modifications of the remaining sugar hydroxyl groups were incorporated to provide an incremental coverage of chemical property parameters that are associated with biopharmaceutical performance. All sulfamate inhibitors displayed ligand efficiencies that are consistent with those reported for good drug lead candidates.
MANI, N. S., INDIAN J. CHEM. B , 28,(1989) N, C. 602-603