An efficient boric acid-mediated preparation of α-hydroxyamides
摘要:
An efficient methodology for the preparation of alpha-hydroxyamides via boric acid-mediated addition of isonitriles onto aldehydes has been developed. The reaction of isonitriles with alpha-boronobenzaldehyde takes place under intramolecular catalysis conditions to provide functionalized benzoxaboroles. (c) 2009 Elsevier Ltd. All rights reserved.
HEPTOSE DERIVATIVES FOR USE IN THE TREATMENT OF BACTERIAL INFECTIONS
申请人:Gerusz Vincent
公开号:US20140024576A1
公开(公告)日:2014-01-23
Compounds having the general formula (I) pharmaceutical compositions containing them for use in inhibiting bacterial heptose biosynthesis and thereby lowering or suppressing bacterial virulence.
A direct asymmetric reductive amination of α-keto acids catalyzed by Cp*Ir complexes bearing a chiral N-(2-picolyl)sulfonamidato ligand is described. The combined use of optically active 2-phenyglycinol as an aminating agent is effective for the chemo- and stereoselective transfer hydrogenation using formic acid. The subsequent elimination of the hydroxyethyl moiety by orthoperiodic acid can afford