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.
PEI类似物的1°、2°和3°胺组成可以通过特殊的合成方法轻松调整,并研究它们对基因转染的影响。
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.