A mild and efficient NBS promoted intramolecular oxidative cyclization/aromatization of β-tetralone oximes has been explored. Under the optimized conditions, fused α-carbolines containing pentacyclic rings were obtained in moderate to good yields. Furthermore, various benzo[5,6]chromeno[2,3-b]indoles were successfully synthesized in moderate yields from β-tetralones using slightly modified conditions
已探索了温和有效的NBS促进了β-四氢萘酮肟的分子内氧化环化/芳香化。在优化的条件下,以中等至良好的产率获得了含有五环的稠合α-咔啉。此外,在稍加修改的条件下,由β-四氢萘酮成功地以中等收率成功合成了各种苯并[5,6] chromeno [2,3- b ]吲哚。根据实验结果,我们提出了一种可能的反应途径。
AROMATIC HETEROCYCLIC COMPOUNDS AND THEIR APPLICATION IN PHARMACEUTICALS
申请人:SUNSHINE LAKE PHARMA CO., LTD.
公开号:US20160251339A1
公开(公告)日:2016-09-01
Provided herein are novel aromatic heterocyclic compounds or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof, and their uses for treating Alzheimer's disease. Also provided herein are pharmaceutical compositions containing such compounds, and methods for using such compounds or pharmaceutical compositions thereof to treat Alzheimer's disease.
Site- and Enantioselective Manganese-Catalyzed Benzylic C–H Azidation of Indolines
作者:Min Cao、Hongliang Wang、Yingang Ma、Chen-Ho Tung、Lei Liu
DOI:10.1021/jacs.2c07089
日期:2022.8.24
nitrogen-based functional groups and diverse bioactive molecules at the C3 position of indoline frameworks through post-azidation manipulations. Gram-scale synthesis was also demonstrated, further highlighting the synthetic potential of the method. Mechanistic studies by combined experiments and computations elucidated the reaction mechanism and origins of stereoselectivity.