50327-22-5

Usage

Uses

Industrial fiber; fiber-reinforced rubber products.

Upstream product

• 857609-65-5 N-(3-hydroxy-phenyl)-adipamic acid methyl ester 
• 110-60-1 1,4-diaminobutane 
• 627-93-0 hexanedioic acid dimethyl ester 
• 2035-75-8 adipic anhydride 
• 59156-70-6 hexanedioic acid bis(N-hydroxysuccinimide ester) 

Relevant academic research and scientific papers

RESIDUALIZING LINKERS AND USES THEREOF

The present invention relates to conjugates including a residualizing linker, methods for their production, and uses thereof.

Dimeric argininamide-type neuropeptide y receptor antagonists: Chiral discrimination between Y1 and Y4 receptors

The structurally related peptides neuropeptide Y (NPY), peptide YY (PYY) and pancreatic polypeptide (PP) are endogenous agonists of the NPY receptor (YR) family, which in humans comprises four functionally expressed subtypes, designated Y1R, Y2R, Y4R and Y5R. Nonpeptide antagonists with high affinity and selectivity have been described for the Y1R, Y2R and Y5R, but such compounds are still lacking for the Y4R. In this work, the structures of the high affinity selective (R)-argininamide-type Y1R antagonists BIBP3226 and BIBO3304 were linked via the guanidine or urea moieties to give homo-dimeric argininamides with linker lengths ranging from 31 to 41 atoms. Interestingly, the twin compounds proved to be by far less selective for the Y1R than the R-configured monovalent parent compounds. The decrease in selectivity ratio was most pronounced for Y1R versus Y 4R subtype, resulting in comparable affinities of bivalent ligands for Y1R and Y4R (e.g. UR-MK177 ((R,R)-49): Ki = 230 nM (Y1R) and 290 nM (Y4R)). With a Ki value of 130 nM and a Kb value of 20 nM, UR-MK188 ((R,R)-51) was superior to all Y4R antagonists known to date. The S,S-configured optical antipodes of UR-MK177 and UR-MK188 (UR-MEK381 ((S,S)-49) and UR-MEK388 ((S,S)-51)) were synthesized to investigate the stereochemical discrimination by the different receptor subtypes. Whereas preference for R,R-configured argininamides was characteristic of the Y1R, stereochemical discrimination by the Y4R was not observed. This may pave the way to selective Y4R antagonists.

Poly (ether ester amide) and poly (ether ester urethane) copolymers

The invention relates to new biologically degradable aliphatic copolymers of the polyesteramide or polyesterurethane type. The invention further relates to a method for preparing the copolymers and to products which can be manufactured from the new copolymers.

Enzymatic Aminolysis of Non-activated Diesters with Diamines

Selective aminolysis of diesters is catalysed by Candida antarctica lipase.Using this enzymatic reaction N,N'-polymethylenesuccinimides and N,N'-polymethyleneglutarimides can be obtained.When propane-1,2-diamine is used as the nucleophile, the enzyme catalyses the aminolysis of diesters with very good enantioselectivity.