[EN] TARGETED DELIVERY TO BETA CELLS<br/>[FR] ADMINISTRATION CIBLÉE À DES CELLULES BÊTA
申请人:CHOUDHARY AMIT
公开号:WO2018195486A1
公开(公告)日:2018-10-25
The disclosure includes zinc prodrugs for targeted delivery of therapeutic, diagnostic or imaging agents to β-cells and methods of use therefor. The disclosure also includes targeted delivery of small molecules to β-cells that stabilize and activate CRISPR effector proteins comprising at least one destabilization domain, to enable CRISPR-based genome editing and transcriptional activation or repression in β-cells.
of 5,6,7,8-tetrahydropyrido[3,4-b]pyrazine-based hydroxamic acids enabled us to establish the following structure-activityrelationships; the existence of the hydroxamic acid, the sulfonamide, and the phenyl moieties are crucial for a potent HB-EGF shedding inhibitory activity, and the stereochemistry of the alpha carbon of hydroxamic acid is also important. In addition, from the comparison of their
[EN] NON-CHROMATOGRAPHIC PURIFICATION OF MACROCYCLIC PEPTIDES BY A RESIN CATCH AND RELEASE<br/>[FR] PURIFICATION NON CHROMATOGRAPHIQUE DE PEPTIDES MACROCYCLIQUES PAR CAPTURE ET LIBÉRATION DE RÉSINE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2018227053A1
公开(公告)日:2018-12-13
The disclosure is directed to compounds and methods for preparing purified macrocyclic peptide using "catch-release" methods. These methods comprise reacting a free amino group of a resin-bound linear peptide with an azide- or alkyne-functionalized cap to form a resin-bound capped linear peptide having an azide- or alkyne-functionalized cap; cleaving said capped linear peptide from the resin to form a free capped linear peptide having an azide- or alkyne-functionalized cap; reacting the free capped linear peptide having an azide-functionalized cap with an alkyne-functionalized catch resin, or reacting the free capped linear peptide having an akynyl-functionalized cap with an azide functionalized catch resin, to form a catch-resin bound capped linear peptide; reacting the catch-resin bound capped linear peptide under conditions sufficient to effect macrocyclization of the linear peptide and release of the macrocyclic peptide from the catch resin.
Vinylethers 10, 23, and 33 were attached to Wang resin through the p-oxyphenylsulfonyl linker. The [2+2] cycloadditions between chlorosulfonyl isocyanate and the polymer-bound vinylethers 12, 24, and 34, followed by intramolecular alkylation of the β-lactam nitrogen atom, gave mixtures of the corresponding diastereomeric clavams 8/9 and 21/22 or the oxacephams 31/32, accompanied by the oxirane 7
Synthesis, biological evaluation, and molecular modelling studies of potent human neutrophil elastase (HNE) inhibitors
作者:Maria Paola Giovannoni、Igor A. Schepetkin、Mark T. Quinn、Niccolò Cantini、Letizia Crocetti、Gabriella Guerrini、Antonella Iacovone、Paola Paoli、Patrizia Rossi、Gianluca Bartolucci、Marta Menicatti、Claudia Vergelli
DOI:10.1080/14756366.2018.1480615
日期:2018.1.1
both competitive HNE inhibitors. Molecularmodelling on 7d and 8d suggests for the latter a more crowded region about the site of the nucleophilic attack, which could explain its lowered activity. In addition molecular dynamics (MD) simulations showed that the isomer 8d appears more prone to form H-bond interactions which, however, keep the reactive sites quite distant for the attack by Ser195. By contrast