The direct N-monomethylation of aromatic primary amines, including arylamines, arylsulfonamides and amino-azoles, using methanol as a methylating agent has been accomplished in the presence of a [Cp*IrCl2]2/NaOH system. From both synthetic and environmental points of view, the reaction is highly attractive because of low catalyst loading, broad substrate scope and excellent selectivities.
[EN] 1, 3, 4, 5-TETRAHYDRO-2H-PYRIDO[4,3-B]INDOLE DERIVATIVES FOR THE TREATMENT, ALLEVIATION OR PREVENTION OF DISORDERS ASSOCIATED WITH TAU AGGREGATES LIKE ALZHEIMER'S DISEASE<br/>[FR] DÉRIVÉS DE 1,3,4,5-TÉTRAHYDRO-2H-PYRIDO[4,3-B]INDOLE POUR LE TRAITEMENT, LE SOULAGEMENT OU LA PRÉVENTION DE TROUBLES ASSOCIÉS À DES AGRÉGATS DE TAU COMME LA MALADIE D'ALZHEIMER
申请人:AC IMMUNE SA
公开号:WO2019134978A1
公开(公告)日:2019-07-11
The present invention relates to novel compounds that can be employed in the treatment, alleviation or prevention of a group of disorders and abnormalities associated with Tau (Tubulin associated unit) protein aggregates including, but not limited to, Neurofibrillary Tangles (NFTs), such as Alzheimer's disease (AD).
Discovery of N-methylbenzo[d]oxazol-2-amine as new anthelmintic agent through scalable protocol for the synthesis of N-alkylbenzo[d]oxazol-2-amine and N-alkylbenzo[d]thiazol-2-amine derivatives
N-methylbenzo[d]oxazol-2-amine (2a), which had comparable potency to albendazole, an orally administered anthelmintic drug, against Gnathostoma spinigerum, Caenorhabditis elegans and Trichinella spiralis. Compound 2a showed about 10 times lower cytotoxicity towards normal human cell line (HEK293) than albendazole. Moreover, we have developed new processes for the synthesis of N-alkylbenzo[d]oxazol-2-amine
我们发现了一种先导化合物N - methylbenzo[ d ]oxazol-2-amine ( 2a ),它具有与阿苯达唑相当的效力,阿苯达唑是一种口服的驱虫 药,可以对抗棘口线虫、秀丽隐杆线虫和旋毛虫。化合物2a对正常人细胞系 (HEK293) 的细胞毒性比阿苯达唑低约 10 倍。此外,我们还开发了合成N-烷基苯并[ d ]恶唑-2-胺和N-烷基苯并[ d ]的新工艺] thiazol-2-amine 衍生物通过无金属条件。该协议可以作为一种稳健且可扩展的方法,特别是合成N-甲基苯并 [ d ]恶唑-2-胺和N-甲基苯并[ d ]噻唑-2-胺衍生物,这些衍生物难以使用其他无金属条件制备. 该方法使用苯并恶唑-2-硫醇或苯并噻唑-2-硫醇作为底物。该反应由硫醇官能团的甲基化引发,形成甲基硫化物中间体,这是一种关键策略,它促进了与N-甲基甲酰胺原位产生的气态甲胺的顺利亲核加成-消除反应。此
Fe/S-Catalyzed Redox Condensation of <i>o</i>-Nitrophenols with Isothiocyanates to 2-Aminobenzoxazoles
作者:Le Anh Nguyen、Supasorn Phaenok、Duc Long Le、Thi Thu Tram Nguyen、Quoc Anh Ngo、Thanh Binh Nguyen
DOI:10.1021/acs.orglett.3c01897
日期:2023.7.14
and related sulfur containingcompounds should be treated in a safe way to lower their adverse health and environmental effects, especially in large scale syntheses. As a proof of concept, we report herein an example of in situ recycling of sulfur byproduct to reductant in the synthesis of bioactive 2-aminobenzoxazoles 3. Using an Fe/S catalytic system, this heterocyclic scaffold could be obtained from
Cyanopyrrolidine derivatives with activity as inhibitors of USP30
申请人:MISSION THERAPEUTICS LIMITED
公开号:US11014912B2
公开(公告)日:2021-05-25
The present invention relates to substituted-cyanopyrrolidines of Formula (I) with activity as inhibitors of deubiquitilating enzymes, in particular, ubiquitin C-terminal hydrolase 30 or ubiquitin specific peptidase 30 (USP30), having utility in a variety of therapeutic areas including cancer and conditions involving mitochondrial dysfunction. (I)