180608-78-0

Usage

Type of Compound

Derivative of neurotransmitter gamma-aminobutyric acid (GABA)

Potential Therapeutic Benefits

Treating neurological disorders such as epilepsy and anxiety
Exhibiting anti-seizure and anxiolytic (anti-anxiety) properties

Preclinical Studies

Shown to have positive effects on neurological conditions

Fields of Research

Neuroprotection and neuroregeneration

Current Status

Promising candidate for the development of new treatments for neurological disorders

Structure

Contains a pyrrole ring with a 5-hydroxypentyl side chain and two carbonyl groups at positions 2 and 5

Molecular Weight

Approximately 181.21 g/mol

Upstream product

• 2508-29-4 5-hydroxypentylamine 
• 915095-19-1 N-(5-O-t-butyldimethylsilyloxy pentyl)-maleimide 
• 55750-48-6 N-methoxycarbonylmaleimide 

Relevant academic research and scientific papers

A versatile acid-labile linker for antibody-drug conjugates

Antibody drug conjugates (ADC) couple therapeutic monoclonal antibodies (mAb) with potent toxins through a linker that is stable within systemic circulation, but cleaves within the target cells. In this report, silyl ether chemistry was used to couple the mAb trastuzumab with the chemotherapeutic, gemcitabine, to demonstrate the use of silyl ethers as a potential linker for ADCs.

Striking a Balance between Carbonate/Carbamate Linkage Bond- and Reduction-Sensitive Disulfide Bond-Bearing Linker for Tailored Controlled Release: In Situ Covalent-Albumin-Binding Gemcitabine Prodrugs Promote Bioavailability and Tumor Accumulation

To address the challenges of rapid enzyme inactivation, poor tumor targeting, and acquired drug resistance in gemcitabine (GEM) application, we report two groups of maleimide-functionalized GEM prodrugs conjugating covalently in situ with Cys-34 of blood-circulating albumin and then resulting in macromolecular prodrugs after intravenous administration. Tailored and accurate controlled release was achieved through different combinations of linkage bonds, relatively stable and labile (carbamate and carbonate, respectively), and linkers with or without insertion of a disulfide bond. Interestingly, we found that the overall advantages or disadvantages brought by a disulfide bond varied with the stability of the linkage bond. Finally, the carbonate linkage bond-bearing group, especially the one with a linker lacking a disulfide bond, stood out with remarkably increased bioavailability (21-fold greater than GEM) and efficient tumor free-GEM accumulation (8-fold of GEM), which consequently contributed to excellent in vivo antitumor efficacy.

SULFAMIDE LINKER, CONJUGATES THEREOF, AND METHODS OF PREPARATION

The present invention relates to a compound comprising an alpha-end and an omega-end, the compound comprising on the alpha-end a reactive group Qlcapable of reacting with a functional group F1present on a biomolecule and on the omega-end a target molecule, the compound further comprising a group according to formula (1) or a salt thereof: Said compound may also be referred to as a linker-conjugate. The invention also relates to a process for the preparation of a bioconjugate, the process comprising the step of reacting a reactive group Q1of a linker-conjugate according to the invention with a functional group F1of a biomolecule. The invention further relates to a bioconjugate obtainable by the process according to the invention. In a preferred embodiment, the invention concerns a process for the preparation of a bioconjugate via a cycloaddition, such as a (4+2)-cycloaddition (e.g. a Diels-Alder reaction) or a (3+2)-cycloaddition (e.g. a 1,3-dipolar cycloaddition).

Photoactivable nonsymmetrical bifunctional linkers for protein immobilization on attenuated total reflectance FTIR optical devices

The photosensitive 4-azido-2,3,5,6-tetrafluoro-1-benzoyl core has been connected to maleimide-, chloroacetyloxy-, or succinimidyl carbonate motifs through various spacers to furnish a series of bifunctional linkers. One linker (7a) has been used for the construction of a biosensor for β-lactam antibiotic detection by attenuated total reflectance FTIR (ATR-FTIR) spectroscopy. Linkers featuring a photosensitive aryl azide motif at one end and a function reactive toward nucleophiles at the other end are described. One linker is used for the construction of a biosensor for β-lactam antibiotic detection by attenuated total reflectance FTIR spectroscopy. Copyright

Functionalized phosphonated half-cage molecules as ligands for metal complexes

Phosphonated molecules, featuring a half-cage structure and a N-lateral chain with additional metal coordinating groups were designed as ligands of metal cations. These compounds were synthesized by a Diels-Alder (DA) strategy, using 1-diethoxyphosphoryl-1,3-butadiene and a series of N-substituted maleimides as dienophiles. Two cycloadducts, bearing a terminal primary alcohol and a terminal iodide, respectively, were used as key intermediates for further functionalizations. Metal coordination properties of the ligands equipped with functionalized N-lateral chains were proven by an ESI-HRMS study. The stoichiometry of one selected EuIII complex with a diphosphonated ligand was determined by photoluminescence spectroscopy in emission mode.

MOLECULAR CONSTRUCTS SUITABLE FOR TARGETED CONJUGATES

The present invention relates generally to effective drug-linker constructs suitable for conjugation with ligands. The present invention also discloses methods of conjugating these constructs with peptides to form the compound of formula I. These methods are readily extended to any hydroxyl, amine or sulfur bearing biologically active molecules.

Compounds with electron donor and electron acceptor functionality

Compounds containing both electron donor and electron acceptor functionality are suitable for use in adhesives. The electron donor group is a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the ring. The electron acceptor group is a maleimide, acrylate, fumarate or maleate.