20315-68-8Relevant articles and documents
Catalytic Enantioselective Synthesis of Spirooxindoles by Oxidative Rearrangement of Indoles
Qian, Chenxiao,Li, Pengfei,Sun, Jianwei
supporting information, p. 5871 - 5875 (2021/02/06)
Oxidative rearrangement of indoles to access oxindoles has been used as a key step in complex molecule synthesis. We report a catalytic enantioselective variant of this transformation by chiral phosphoric acid catalysis, providing rapid access to a range of enantioenriched spirooxindoles. The high enantioselectivity is controlled by dynamic kinetic resolution.
Aromatic heterocyclic derivative and application thereof in medicine
-
Paragraph 0517; 0519-0520, (2020/02/08)
The invention provides aromatic heterocyclic derivatives or stereoisomers, tautomers, nitrogen oxides, solvates, metabolites, pharmaceutically acceptable salts or prodrugs thereof, which are used for treating Alzheimer's disease. The invention also discloses pharmaceutical compositions containing the compounds and a method for treating Alzheimer's disease by using the compounds or the pharmaceutical compositions provided by the invention.
Light-Driven Intramolecular C?N Cross-Coupling via a Long-Lived Photoactive Photoisomer Complex
Jing, Dong,Lu, Cong,Chen, Zhuo,Jin, Songyang,Xie, Lijuan,Meng, Ziyi,Su, Zhishan,Zheng, Ke
supporting information, p. 14666 - 14672 (2019/09/06)
Reported herein is a visible-light-driven intramolecular C?N cross-coupling reaction under mild reaction conditions (metal- and photocatalyst-free, at room temperature) via a long-lived photoactive photoisomer complex. This strategy was used to rapidly prepare the N-substituted polycyclic quinazolinone derivatives with a broad substrate scope (>50 examples) and further exploited to synthesize the natural products tryptanthrin, rutaecarpine, and their analogues. The success of gram-scale synthesis and solar-driven transformation, as well as promising tumor-suppressing biological activity, proves the potential of this strategy for practical applications. Mechanistic investigations, including control experiments, DFT calculations, UV-vis spectroscopy, EPR, and X-ray single-crystal structure of the key intermediate, provides insight into the mechanism.