我们报告了在可见光照射下使用 Ir 光催化剂对 N-羟基邻苯二甲酰亚胺酯进行亲核氟化的氧化还原中性方法。该方法提供了获得广泛的脂肪族氟化物的途径,包括伯、仲和叔苄基氟化物以及未活化的叔氟化物,由于竞争消除,这些氟化物通常无法通过亲核氟化获得。此外,我们表明脱羧氟化条件很容易适应 [18F]KF 的放射性氟化。我们建议反应通过 Ir 催化剂和氧化还原活性酯底物之间的两次电子转移进行,以提供碳阳离子中间体,随后被氟化物捕获。
我们报告了在可见光照射下使用 Ir 光催化剂对 N-羟基邻苯二甲酰亚胺酯进行亲核氟化的氧化还原中性方法。该方法提供了获得广泛的脂肪族氟化物的途径,包括伯、仲和叔苄基氟化物以及未活化的叔氟化物,由于竞争消除,这些氟化物通常无法通过亲核氟化获得。此外,我们表明脱羧氟化条件很容易适应 [18F]KF 的放射性氟化。我们建议反应通过 Ir 催化剂和氧化还原活性酯底物之间的两次电子转移进行,以提供碳阳离子中间体,随后被氟化物捕获。
[EN] BIARYLAMIDE INHIBITORS OF LEUKOTRIENE PRODUCTION<br/>[FR] INHIBITEURS BIARYLAMIDE DE PRODUCTION DE LEUKOTRIÈNES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012082817A1
公开(公告)日:2012-06-21
The present invention relates to compounds of formula (I): and pharmaceutically acceptable salts thereof, wherein A, B, C, R1a, R1b, R2, R3, R4a and R4b are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
The present invention provides an agent for the prophylaxis or treatment of autoimmune diseases (e.g., psoriasis, rheumatoid arthritis, inflammatory bowel disease, Sjogren's syndrome, Behcet's disease, multiple sclerosis, systemic lupus erythematosus etc.) and the like, which has a superior Tyk2 inhibitory action.
The present invention relates to a compound represented by the formula
wherein each symbol is as defined in the specification, or a salt thereof.
General and cost-effective synthesis of 1-heteroaryl/arylcycloalkylamines and their broad applications
作者:Dehui Zhang、Hongchao Zheng、Xiaodong Wang
DOI:10.1016/j.tet.2016.02.060
日期:2016.4
A general and cost-effectiveroute has been developed to synthesize 1-heteroarylsubstituted cycloalkylamines from readily available heteroarylacetate in good yields. This synthesis features a LHMDS promoted cyclization and one-pot hydrolysis/Curtius rearrangement. This route can be easily carried out on multi-gram scale and be also used to prepare 1-arylsubstituted cycloalkyl/cycloheteroalkylamines
The present invention provides compounds, compositions thereof, and methods of using the same for the inhibition of HPK1, and the treatment of HPK1-mediated disorders.
本发明提供了化合物、其组合物以及使用这些化合物用于抑制HPK1和治疗HPK1介导的疾病的方法。
Substituted isoindolin-1-ones and 2,3-dihydro-1H-pyrrol[3,4-c]pyridin-1-ones as HPK1 antagonists
申请人:Nimbus Saturn, Inc.
公开号:US11078201B2
公开(公告)日:2021-08-03
The present invention provides compounds, compositions thereof, and methods of using the same for the inhibition of HPK1, and the treatment of HPK1-mediated disorders.