[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 [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
[EN] TETRAHYDROBENZOFURO[2,3-C]PYRIDINE AND BETA-CARBOLINE COMPOUNDS FOR THE TREATMENT, ALLEVIATION OR PREVENTION OF DISORDERS ASSOCIATED WITH TAU AGGREGATES<br/>[FR] COMPOSÉS DE TÉTRAHYDROBENZOFURO[2,3-C]PYRIDINE ET DE BÊTA-CARBOLINE POUR LE TRAITEMENT, LE SOULAGEMENT OU LA PRÉVENTION DE TROUBLES ASSOCIÉS À DES AGRÉGATS DE PROTÉINE TAU
申请人:AC IMMUNE SA
公开号:WO2019233883A1
公开(公告)日:2019-12-12
The present invention relates to novel compounds of formula (I) 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).
Metal-Free Synthesis of 2-Substituted (N, O, C) Benzothiazoles via an Intramolecular C−S Bond Formation
作者:Enguang Feng、He Huang、Yu Zhou、Deju Ye、Hualiang Jiang、Hong Liu
DOI:10.1021/cc9001839
日期:2010.7.12
convenient method was developed for the preparation of 2-substituted (N, O, C) benzothiazoles from N'-substituted-N-(2-halophenyl)thioureas, O'-substituted-N-(2-halophenyl) carbamothioates, or N-(2-halophenyl) thioamides via a base-promoted cyclization in dioxane without any transition metal. A one-pot variant combining the synthesis of the thiourea and the cyclization was also demonstrated. High yields
α-phosphorylmethyl benzothiazolyl sulfoxides in the thermolyses and in the presence of several amines, such as aniline, benzylamine, piperidine, morpholine, and pyrrolidine. Thermolyses of the derivatives in the presence of 2,3-dimethyl-1,3-butadiene afforded 2-phosphoryl substituted 4,5-dimethyl-3,6-dihydro-2H-thiopyran S-oxide. In the reaction with amines, the complex product mixture, which contains
我们已经检查了α-磷酰基甲基苯并噻唑基亚砜在热解中以及在几种胺(例如苯胺,苄胺,哌啶,吗啉和吡咯烷)的存在下的反应性。在2,3-二甲基-1,3-丁二烯,得到存在的衍生物的Thermolyses 2 -磷酰基被取代的4,5-二甲基-3,6-二氢-2 H ^ -噻喃小号氧化物。在与胺的反应中,复合产物混合物包含α-磷酰基甲基苯并噻唑基硫化物(2和5),α-磷酰基甲基二硫化物(15和16)以及2-氨基取代的苯并噻唑14发现除目标膦碳硫磺酰胺外还形成了H。进行了一些机理研究以阐明形成机理,特别是对于起始亚砜的脱氧产物,即分别为3和6的2和5。
作者:Shivani Sharma、Ramdas S. Pathare、Antim K. Maurya、Kandasamy Gopal、Tapta Kanchan Roy、Devesh M. Sawant、Ram T. Pardasani
DOI:10.1021/acs.orglett.5b03185
日期:2016.2.5
A ruthenium catalyzedintramolecular C–S coupling reaction of N-arylthioureas for the synthesis of 2-aminobenzothiazoles has been developed. Kinetic, isotope labeling, and computational studies reveal the involvement of an electrophilic ruthenation pathway instead of a direct C–H activation. Stereoelectronic effect of meta-substituents on the N-arylthiourea dictates the final regioselective outcome
A ligand free copper(II) catalyst is as effective as a ligand assisted Pd(II) catalyst towards intramolecular C–S bond formation via C–H functionalization
作者:Arghya Banerjee、Sourav Kumar Santra、Saroj Kumar Rout、Bhisma K. Patel
DOI:10.1016/j.tet.2013.08.025
日期:2013.10
Copper(I) catalysts are usually ineffective on the other hand Pd(II) catalysts are quite effective in promoting intramolecular sp2 C–H functionalization (C–S bond formation). Herein, we have developed a ligand assisted Pd(II) catalyzed C–S bond formation via C–H activation from arylthioureas leading to the formation of 2-aminobenzothiazoles for substrates bearing electron donating (EDG) groups in the