134978-97-5Relevant academic research and scientific papers
TARGETED BIFUNCTIONAL DEGRADERS
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Page/Page column 189, (2021/04/17)
The present invention provides, in one aspect, bifunctional compounds that can be used to promote or enhance degradation of certain circulating proteins. In another aspect, the present invention provides bifunctional compounds that can be used to promote or enhance degradation of certain autoantibodies. In certain embodiments, treatment or management of a disease and/or disorder requires degradation, removal, or reduction in concentration of the circulating protein or the autoantibody in the subject. Thus, in certain embodiments, administration of a compound of the invention to the subject removes or reduces the circulation concentration of the circulating protein or the autoantibody, thus treating, ameliorating, or preventing the disease and/or disorder. In certain embodiments, the circulating protein is TNF.
Preparation method of AEEA
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Paragraph 0067-0069, (2021/10/27)
The invention relates to the technical field of chemical synthesis, in particular to a preparation method of AEA. According to the preparation method of AEEA provided by the invention, amino on diglycol amine is protected by chloroacetyl chloride, then ring formation is carried out in the presence of NaH, and AEEA is obtained through hydrolysis. The method has the advantages of reduced reaction steps, low production cost, high product purity and few impurities, and is suitable for industrial large-scale production.
Preparation method of [2-[1-(Fmoc-amino)ethoxy]ethoxy]acetic acid
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Paragraph 0065; 0068; 0070, (2019/09/17)
The invention provides a preparation method of [2-[1-(Fmoc-amino)ethoxy]ethoxy]acetic acid. The preparation method comprises steps as follows: amino protection is performed on diglycolamine by use ofphthalic anhydride, an obtained intermediate and halo-acetic acid or halo-acetate are subjected to a reaction, deprotection or deprotection and hydrolysis are performed, a product reacts with a Fmoc-based amino protection reagent, and [2-[1-(Fmoc-amino)ethoxy]ethoxy]acetic acid is obtained. In the preparation method, phthalic anhydride and diglycolamine are taken as initial raw materials, short time is required by an amino protection reaction, an obtained intermediate compound has good stability, can be preserved for a long time and does not react with water, water-soluble impurities (such asthe raw material diglycolamine, a byproduct phthalic acid and the like) can be separated through extraction, so that an amino protection product with high purity is obtained, and the purity and the yield of the target product are also improved.
Synthesis, Biological Evaluation of Fluorescent 23-Hydroxybetulinic Acid Probes, and Their Cellular Localization Studies
Yao, Hong,Wei, Guoxiang,Liu, Yanpeng,Yao, Hequan,Zhu, Zheying,Ye, Wencai,Wu, Xiaoming,Xu, Jinyi,Xu, Shengtao
, p. 1030 - 1034 (2018/10/15)
23-Hydroxybetulinic acid (23-HBA) is a complex lupane triterpenoid, which has attracted increasing attention as an anticancer agent. However, its detailed mechanism of anticancer action remains elusive so far. To reveal its anticancer mode of action, a series of fluorescent 23-HBA derivatives conjugated with coumarin dyes were designed, synthesized, and evaluated for their antiproliferative activities. Subcellular localization and uptake profile studies of representative fluorescent 23-HBA probe 26c were performed in B16F10 cells, and the results suggested that probe 26c was rapidly taken up into B10F10 cells in a dose-dependent manner and mitochondrion was the main site of its accumulation. Further mode of action studies implied that the mitochondrial pathway was involved in 23-HBA-mediated apoptosis. Together, our results provided new clues for revealing the molecular mechanism of natural product 23-HBA for its further development into an antitumor agent.
Cell-targeted platinum nanoparticles and nanoparticle clusters
Papst, Stefanie,Brimble, Margaret A.,Evans, Clive W.,Verdon, Daniel J.,Feisst, Vaughan,Dunbar, P. Rod,Tilley, Richard D.,Williams, David E.
supporting information, p. 6567 - 6572 (2015/06/16)
Herein, we report the facile preparation of cell-targeted platinum nanoparticles (PtNPs), through the design of peptides that, as a single molecule added in small concentration during the synthesis, control the size of PtNP clusters during their growth, stabilise the PtNPs in aqueous suspension and enable the functionalisation of the PtNPs with a versatile range of cell-targeting ligands. Water-soluble PtNPs targeted respectively at blood group antigens and at integrin receptors are demonstrated.
Semisynthesis of fluorescent metabolite sensors on cell surfaces
Brun, Matthias A.,Griss, Rudolf,Reymond, Luc,Tan, Kui-Thong,Piguet, Joachim,Peters, Ruud J.R.W.,Vogel, Horst,Johnsson, Kai
supporting information; experimental part, p. 16235 - 16242 (2011/12/01)
Progress in understanding signal transduction and metabolic pathways is hampered by a shortage of suitable sensors for tracking metabolites, second messengers, and neurotransmitters in living cells. Here we introduce a class of rationally designed semisyn
NOVEL MULTIMERIC MOLECULES, A PROCESS FOR PREPARING THE SAME AND THE USE THEREOF FOR MANUFACTURING MEDICINAL DRUGS
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, (2010/06/16)
The invention relates to a compound of the formula (I): in which k and j are independently 0 or 1, Y is a macrocycle in which the cycle includes 9 to 36 carbon atoms and is functionalised by three amino functions and by a chain for attaching the spacer arm Z via an X bond, Rc is a binding pattern with a receptor of the TNF superfamily, X is a chemical function for binding the Y group to the space arm, and Z is a bi-, tri- or tetra-functional spacer arm.
NOVEL MULTIMERIC CD40 LIGANDS, METHOD FOR PREPARING SAME AND USE THEREOF FOR PREPARING DRUGS
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, (2010/08/07)
The invention concerns a compound of formula (I), wherein Y represents a macrocycle whereof the cycle comprises 9 to 36 atoms, and is functionalized by three amine or COOH functions; Rc represents a group of formula H—Xa—Xb—Xc—Xd—Xe—(Xf)i—, wherein i represents 0 or 1, Xn is in particular selected among lysine, arginine, ornithine residues, Xb is in particular selected among glycine, asparagine, L-proline or D-proline residues, Xc et Xd are in particular selected among tyrosine, phenylalanine or 3-nitrotyrosine residues, Xe et Xf are in particular selected among the following amino acid residues: NH2—(CH2)n—COOH, n ranging from 1 to 10 or NH2—(CH2—CH2—O)m—CH2CH2COOH, m ranging from 3 to 6, provided that one at least of the amino acid residues Xa, Xb, Xc and Xd is different from the corresponding amino acid in the sequence of the natural CD40 143Lys-Gly-Tyr-Tyr146 fragment
A novel heterotrifunctional peptide-based cross-linking reagent for facile access to bioconjugates. Applications to peptide fluorescent labelling and immobilisation
Clavé, Guillaume,Boutal, Hervé,Hoang, Antoine,Perraut, Fran?ois,Volland, Hervé,Renard, Pierre-Yves,Romieu, Anthony
supporting information; experimental part, p. 3065 - 3078 (2009/02/03)
A convenient, versatile and straightforward synthesis of a novel heterotrifunctional peptide-based linker molecule is described. This generic bio-labelling reagent contains an amine-reactive N-hydroxysuccinimidyl carbamate moiety, an aldehyde/ketone-reactive aminooxy group and a thiol group with a propensity to form urea, oxime and thioether linkages respectively. The full chemical orthogonality between the free aminooxy and thiol functionalities was demonstrated through the preparation of a fluorescent reagent suitable for the selective staining of a carboxaldehyde-modified surface by means of oxime ligation. The absence of reactivity of these two functions toward the nucleophile-sensitive active carbamate was obtained by using temporary aminooxy- and thiol-protecting groups removable under mild conditions. The utility of the linker molecule to cross-link three different molecular partners has been illustrated by the preparation of fluorescent tripod-functionalised surfaces which may be useful in developing new peptide microarrays and related immunosensors.
PHARMACEUTICAL PREPARATIONS COMPRISING INSULIN, ZINC IONS AND A ZINC-BINDING LIGAND
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Page/Page column 357, (2008/06/13)
Novel preparations comprising branched ligands for the HisB10 Zn2+ sites of the R-state insulin hexamer. The preparations have a prolonged action designed for flexible injection regimes.
