valuable in biomedical applications, their synthesis remains a long-standing challenge. To this end, a peptide-based strategy for such M-PEGs was developed. With macrocyclic sulfates as the key intermediates, a panel of oligoethylene glycol (OEG) containing ω-amino acids were prepared with high efficiency. Through solid phase peptidesynthesis (SPPS), these amino acids were conveniently assembled into a series
[EN] TARGETED DRUG DELIVERY THROUGH AFFINITY BASED LINKERS<br/>[FR] ADMINISTRATION CIBLÉE D'UN MÉDICAMENT FAISANT APPEL À DES COUPLEURS FONDÉS SUR L'AFFINITÉ
申请人:INVICTUS ONCOLOGY PVT LTD
公开号:WO2015148126A1
公开(公告)日:2015-10-01
The current invention discloses targeted drug delivery conjugates comprising a targeting moiety linked to a drug via a molecule having an affinity for the targeting moiety. Typically, the conjugate comprises a targeting ligand and a molecule of interest, e.g., a therapeutic agent. The targeting ligand and the molecule of interest are linked to each other via an affinity ligand. The affinity ligand is further covalently or non-covalently linked to a drug or therapeutic agent. The drug can be modified to make it more soluble and so that it cleaves from the linking molecule at the target site.
The present invention relates compounds of the formula A
oligosaccharide-spacer-GpIIb/IIIa antagonist (A),
wherein
the oligosaccharide is a negatively charged oligosaccharide residue comprising four to twenty five monosaccharide units, the charge being compensated by positively charged counterions, and wherein the oligosaccharide residue is derived from an oligosaccharide which has (AT-III mediated) anti-Xa activity per se;
the spacer is a bond or an essentially pharmacologically inactive linking residue;
the GpIIb/IIIa antagonist is a residue mimicking the RGD and/or K(QA)GD fragment of fibrinogen, typically comprising an optionally esterified carboxylate moiety and a basic moiety located within the residue at a distance of 10-20 Å from each other;
or a pharmaceutically acceptable salt thereof or a prodrug or a solvate thereof.
The compounds of the invention have antithrombotic activity and can be used in treating or preventing thrombotic diseases.
COMPOUNDS AND METHODS FOR THE TARGETED DEGRADATION OF ENHANCER OF ZESTE HOMOLOG 2 POLYPEPTIDE
申请人:Arvinas, Inc.
公开号:US20180177750A1
公开(公告)日:2018-06-28
The present disclosure relates to bifunctional compounds, which find utility as modulators of enhancer of zeste homolog 2 (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand which binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.