[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).
A new iron-catalyzed, direct C-H amination of azoles at C2 has been developed by usingformamides or amines as nitrogen sources. Imidazole is the only additive in the catalyst system and oxygen in air is employed during the transformation process.
dithiocarbamates and tetramethylthiuram disulfide (TMTD), respectively. With the promotion of NaH/CuI, the reaction of o-aminophenols with dithiocarbamates gave 2-aminobenzoxazoles with good yield (70–92%) in one pot manner, and 2-mercaptobenzoxazoles were synthesized (yield: 55–80%) in the presence of K2CO3 by treating o-aminophenols with tetramethylthiuram disulfide (TMTD). The feature of this method
通过分别用二硫代氨基甲酸酯和四甲基秋兰姆二硫化物(TMTD)处理邻氨基苯酚来选择性合成2-氨基苯并恶唑和2-巯基苯并恶唑。随着NaH / CuI的促进,邻氨基苯酚与二硫代氨基甲酸酯的反应可以一锅法得到2-氨基苯并恶唑,收率良好(70-92%),而合成2-巯基苯并恶唑(收率:55-80%)。通过用二甲基四甲基秋兰姆(TMTD)处理邻氨基苯酚来获得K 2 CO 3的存在。该方法的特征包括良好到极好的收率,容易的操作和广泛的底物范围,这使得该方案在制备某些潜在的药物活性化合物中具有实用性和吸引力。
Silver-Mediated Direct Amination of Benzoxazoles: Tuning the Amino Group Source from Formamides to Parent Amines
Going to the source: Formamides or parentamines were used as an aminogroupsource for the silver‐mediated amination of benzoxazoles. Although reactions with formamides proceeded at high temperatures, the directamination with amines took place under much milder conditions (see scheme). Optically active aminogroups could also be installed without racemization.
catalysis of copper, 2-aminophenols or 2-aminothiophenols reacted with thiocarbamoyl chlorides via a tandem manner, furnishing a series of 17 benzoheterocycles smoothly with good to excellent yields (70–91%). The broad substrate scope, short reaction time, mild react conditions, easy performance and nice yields make this approach attractive, showing its practical synthetic value for the preparation of some