Interaction of fluorine-containing 1,3-dicarbonyl compounds with polyamines
摘要:
In the reaction of fluorinated copper(II) 1,3-diketonates with diethylenetriamine (or triethylenetetramine) in CHCl3, N,N'-bis(1,3-aminovinylketones) are formed in 21-35% yields. Fluorine-containing 1,3-diketones and 1,3-ketoesters, upon interaction with polyamines without solvent, undergo acid cleavage, forming the corresponding amides. The copper(II) 1,3-ketoesterates are readily cleaved in CHCl3 at 25-degrees-C in excess triethylenetetramine or ethylenediamine.
The 1°, 2° and 3° amine composition of PEI analogs could be easily adjusted by special synthetic method, and their effects on the gene transfection were studied.
Developing Bivalent Ligands to Target CUG Triplet Repeats, the Causative Agent of Myotonic Dystrophy Type 1
作者:Amin Haghighat Jahromi、Yuan Fu、Kali A. Miller、Lien Nguyen、Long M. Luu、Anne M. Baranger、Steven C. Zimmerman
DOI:10.1021/jm400794z
日期:2013.12.12
expanded CUG repeat transcript (CUGexp) is the causative agent of myotonicdystrophytype1 (DM1) by sequestering muscleblind-like 1 protein (MBNL1), a regulator of alternativesplicing. On the basis of a ligand (1) that was previously reported to be active in an in vitro assay, we present the synthesis of a small library containing 10 dimeric ligands (4–13) that differ in length, composition, and attachment
Novel Fmoc-Polyamino Acids for Solid-Phase Synthesis of Defined Polyamidoamines
作者:David Schaffert、Naresh Badgujar、Ernst Wagner
DOI:10.1021/ol200381z
日期:2011.4.1
A versatile solid-phase approach to sequence-defined polyamidoamines was developed. Four different Fmoc-polyamino acid building blocks were synthesized by selective protection of symmetrical oligoethylenimine precursors followed by introduction of a carboxylic acid handle using cyclic anhydrides and subsequent Fmoc-protection. The novel Fmoc-polyamino acids were used to construct polyamidoamines demonstrating
[EN] POLYPLEX DELIVERY SYSTEM FOR PROTEINS, NUCLEIC ACIDS AND PROTEIN/NUCLEIC ACID COMPLEXES<br/>[FR] SYSTÈME D'ADMINISTRATION DE POLYPLEXES POUR PROTÉINES, ACIDES NUCLÉIQUES ET COMPLEXES PROTÉINE/ACIDE NUCLÉIQUE
申请人:WISCONSIN ALUMNI RES FOUND
公开号:WO2019165149A1
公开(公告)日:2019-08-29
Provided herein are nanoplexes comprising a payload selected from a protein and/or a polynucleic acid; and a plurality of copolymers comprising a first copolymer that is poly(N,N'-bis(acryloyl)cystamine-poly(aminoalkyl)) (PBAP), a second copolymer that is poly(C2-3 akylene glycol)-PBAP-poly(C2-3 akylene glycol), and a third copolymer that is TG-poly(C2-3 akylene glycol)-PBAP-poly(C2-3 akylene glycol)-TG wherein TG at each occurrence is independently a targeting ligand, a cell penetrating peptide, an imaging agent or a capping group, provided that a plurality of TG groups is a targeting ligand; wherein the payload is non-covalently complexed to one or more of the copolymers, one or more of the first, second, and/or third copolymers comprises an endosomal escape group having a pKa of about 4.5 to about 6.5, and optionally one or more of the first, second, and/or third copolymers comprises a host and a guest non-covalent crosslinker.
Compositions and methods useful in administering nucleic acid based therapies, for example association complexes such as liposomes and lipoplexes are described.