Herein, we describe the copper-catalyzed aerobic C(sp3)–H functionalization of 2-alkylbenzamides for the synthesis of benzolactones. This reaction proceeds via 1,5-hydrogenatomtransfer of N-centered radicals directly generated by N–H bond cleavage and does not require the synthesis of pre-functionalized N-centered radical precursors or the use of strong stoichiometric oxidants.
在此,我们描述了铜催化的需氧 C(sp 3 )-H 官能化 2-烷基苯甲酰胺用于合成苯并内酯。该反应通过N-H 键断裂直接产生的 N 中心自由基的 1,5-氢原子转移进行,不需要合成预功能化的 N 中心自由基前体或使用强化学计量氧化剂。
5-(1,2,4-Triazol-1-ylmethyl)-3H-isobenzofuran-1-one derivatives, their preparation and use as aromatase inhibitors
申请人:GLAXO GROUP LIMITED
公开号:EP0574992A1
公开(公告)日:1993-12-22
This invention relates to heterocyclic compounds which are inhibitors of the enzyme aromatase, to processes for their preparation, to pharmaceutical compositions containing them and to their use in medicine.
Particular compounds of the invention are compounds of formula (I)
wherein R¹ represents a cyano or nitro group;
R² represents hydrogen or one or more halogen atoms;
R³ represents a C₁₋₆alkyl group and R⁴ represents hydrogen or a C₁₋₆alkyl group or R³ and R⁴ together represent a C₃₋₆cycloalkyl group; and
R⁵ represents hydrogen or one or more halogen atoms or C₁₋₆alkoxy groups and pharmaceutically acceptable salts and solvates thereof.
The present invention relates to a class of thienodiazepine derivatives and an application thereof in the preparation of a drug for the treatment of diseases associated with bromodomain and extra-terminal (BET) Bromodomain inhibitors. Specifically, the present invention relates to compounds represented by formulas (I) and (II), as well as pharmaceutically acceptable salts thereof.