开发了一种通过脱氢交叉偶联和放出 H 2对杂芳烃进行 C-H 硅烷化的有机电光催化方法。通过使用 9,10-菲醌作为有机催化剂和氢原子转移 (HAT) 试剂,有机电光催化策略在简单高效的单催化系统下进行,避免了对外部 HAT 试剂、氧化剂或金属试剂。多种杂芳烃可以以令人满意的收率和出色的区域选择性相容。
The photochemical alkylation and reduction of heteroarenes
作者:T. McCallum、S. P. Pitre、M. Morin、J. C. Scaiano、L. Barriault
DOI:10.1039/c7sc03768f
日期:——
of transition-metal catalyzed processes that require initiators and stoichiometric oxidants. Herein, we describe the photochemical alkylation of quinolines, pyridines and phenanthridines, where through direct excitation of the protonated heterocycle, alcohols and ethers, such as methanol and THF, can serve as alkylating agents. We also report the discovery of a photochemical reduction of these heteroarenes
The present invention relates to a compound of the formula I
wherein R1, R2, R3, R4 and R5 are as defined in the specification, for use in the diagnostic and therapeutic treatment of a warm-blooded animal, especially for the treatment of a disease (=disorder) that depends on activity of renin; the use of a compound of that class for the preparation of a pharmaceutical formulation for the treatment of a disease that depends on activity of renin; the use of a compound of that class in the treatment of a disease that depends on activity of renin; pharmaceutical formulations a compound of that class; a method of treatment comprising administering a compound of that class and a method for its manufacture.
Pro‐aromaticity Enabled Dealkenylative Functionalizations via Photo‐Excitation and Oxidation
作者:Si‐Cong Chen、Qi Zhu、Han Chen、Zijing Chen、Tuoping Luo
DOI:10.1002/chem.202203425
日期:——
Dealkenylative Giese-type addition, hydrazination, borylation, Minisci-type alkylation, copper-catalyzed NH alkylation, acylation, alkynylation, cyanation, and azidation, have been achieved on olefin-containing substrates in a one-pot and highly modular fashion.
Chemical Fragment Screening and Assembly Utilizing Common Chemistry for NMR Probe Introduction and Fragment Linkage
申请人:Sem Daniel S.
公开号:US20100305326A1
公开(公告)日:2010-12-02
Disclosed herein are methods related to drug development. The methods typically include steps whereby two chemical fragments are identified as binding to a target protein and subsequently the two chemical fragments are joined to create a new chemical entity that binds to the target protein.