Non-steroidal antiandrogens. Design of novel compounds based on an infrared study of the dominant conformation and hydrogen-bonding properties of a series of anilide antiandrogens
摘要:
Antiandrogenic activity is observed in anilides containing a tertiary hydroxyl group, and these compounds are used to define a pharmacophore in terms of their physicochemical properties. Infrared spectroscopy shows that these anilides exist in a single conformation, which exerts a powerful influence on the hydrogen-bond donor ability of the hydroxyl group in a model system. Arguments are presented which suggest that hydrogen-bonding ability is an important contributor to biological activity. Compounds were synthesized that reproduced these properties in series not containing an amide bond. Such compounds were found to exhibit good antiandrogen activity. We suggest that quantitative information on hydrogen bonding might also be useful in other systems.
N-heterocyclic carbenes mediated cyano-phosphorylation of ketones
摘要:
Cyanation-O-protection reaction of ketones with different cyanide sources catalyzed by N-heterocyclic carbenes is reported. Under the catalysis of 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, various ketones coupled with diethyl cyanophosphonate to produce cyanohydrin-O-phosphates with a quaternary carbon center in moderate to excellent yield. Furthermore, the reaction can be scaled-up easily and high yield maintained. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] SELF-IMMOLATIVE LINKERS CONTAINING MANDELIC ACID DERIVATIVES, DRUG-LIGAND CONJUGATES FOR TARGETED THERAPIES AND USES THEREOF<br/>[FR] LIEURS AUTO-IMMOLABLES CONTENANT DES DÉRIVÉS D'ACIDE MANDÉLIQUE, CONJUGUÉS MÉDICAMENT-LIGAND POUR THÉRAPIES CIBLÉES, ET LEURS UTILISATIONS
申请人:ASANA BIOSCIENCES LLC
公开号:WO2015038426A1
公开(公告)日:2015-03-19
The invention provides a therapeutic drug and targeting conjugate, pharmaceutical compositions containing these conjugates in pharmaceutical composition, and uses of these conjugates in anti-neoplastic and other therapeutic regimens. Also provided are novel intermediates thereof. The conjugates provide a therapeutic drug fragment or prodrug fragment bound to a targeting moiety via a linker which comprises a substrate cleavable by a protease such as Cathepsin B. The targeting moiety is a ligand which targets a cell surface molecule, such as a cell surface receptor on an anti-neoplastic cell. The ligand may function solely as a targeting moiety or may itself have a therapeutic effect. Following administration of the therapeutic drug and targeting conjugate of formula I and exposure of the conjugate to the protease specific for the substrate, the linker is cleaved and the targeting moiety is separated from the conjugate, which causes the drug fragment or prodrug fragment to convert to the drug or prodrug. The recited conjugates are useful in anti-neoplastic therapies. Also provided are methods of making the therapeutic drug and targeting conjugates and intermediates thereof, and kits comprising the therapeutic drug and targeting conjugates.
The present invention provides compounds, compositions thereof, and methods of using the same for the inhibition of TYK2, and the treatment of TYK2-mediated disorders.
本发明提供了化合物、其组合物以及使用这些化合物来抑制TYK2并治疗TYK2介导的疾病的方法。
[EN] TYK2 INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE TYK2 ET LEURS UTILISATIONS
申请人:NIMBUS LAKSHMI INC
公开号:WO2015131080A1
公开(公告)日:2015-09-03
The present invention provides compounds, compositions thereof, and methods of using the same for the inhibition of TYK2, and the treatment of TYK2-mediated disorders.
The present invention provides cyclic depsipeptides of Formula (1), stereoisomers thereof, and veterinary acceptable salts thereof wherein each of R1, R2, R3, R4, L1, and L2 are as defined herein. The present invention also contemplates compositions, methods of treatment, and uses as a medicament to treat an animal for an endoparasitic infection with a Formula (1 ) compound.
Synthesis of α-Hydroxycarboxylic Acids from Various Aldehydes and Ketones by
Direct Electrocarboxylation: A Facile, Efficient and Atom Economy Protocol
In present work, the formation of α-hydroxycarboxylic acids have been described from various aromatic aldehydes and ketones via direct electrocarboxylation method with 80-92% of yield without any side product and can be purified by simple recrystallization using sacrificial Mg anode and Pt cathode in an undivided cell, CO2 at (1 atm) was continuously bubbled in the cell throughout the reaction using