Polymethylhydrosiloxane (PMHS): A Convenient Option for Synthetic Applications of the Iodine/Silane Combined Reagent - Straightforward Entries to 2-Hydroxyglycals and Useful Building-Blocks of Glucuronic Acid and Glucosamine
作者:Maddalena Giordano、Alfonso Iadonisi
DOI:10.1002/ejoc.201201084
日期:2013.1
Polymethylhydrosiloxane (PMHS) proved to be a practically convenient alternative to triethylsilane in a large set of synthetic elaborations entailing the quick generation of glycosyl iodides with a iodine/silanecombinedreagent. In addition, the scope of this combinedreagent was expanded to the especially fast generation of 2-acetoxyglycals, and the rapid synthesis of usefulbuilding-blocks of D-glucuronic
Trimethylsilyl bromide as a mild, stereoselective anomeric brominating agent
作者:John W Gillard、Mervyn Israel
DOI:10.1016/s0040-4039(01)90142-x
日期:——
N-β-Glycosyl sulfamides are selective inhibitors of the cancer associated carbonic anhydrase isoforms IX and XII
作者:Oscar M. Rodríguez、Alfonso Maresca、Carlos A. Témpera、Rodolfo D. Bravo、Pedro A. Colinas、Claudiu T. Supuran
DOI:10.1016/j.bmcl.2011.06.031
日期:2011.8
The transmembrane isoforms of carbonic anhydrase (CA IX and XII) have been shown to be linked to carcinogenesis and their inhibition to arrest primary tumor and metastases growth. In this Letter, we present a series of peracetylated and deprotected N-beta-glycosyl sulfamides that were tested for the inhibition of 4 carbonic anhydrase isoforms: the cytosolic hCA I and hCA II and transmembrane tumor-associated IX and XII. Compounds 1-4 and 6-8 selectively target cancer-associated CAs (IX and XII) with KIs in the low nanomolar range. (C) 2011 Elsevier Ltd. All rights reserved.