Palladium-catalysed direct diarylations of pyrazoles with aryl bromides: a one step access to 4,5-diarylpyrazoles
作者:Abdelilah Takfaoui、Liqin Zhao、Rachid Touzani、Pierre H. Dixneuf、Henri Doucet
DOI:10.1016/j.tetlet.2014.01.079
日期:2014.3
The palladium-catalyseddirect arylation of pyrazoles with aryl halides, using PdCl(C3H5)(dppb)/KOAc catalyst, reveals a similar reactivity of C4 and C5 CH bonds of pyrazoles, whereas the C3 CH bond is almost unreactive, and gives access in one step to a variety of 4,5-diarylpyrazoles. This CH bond functionalisation reaction tolerates a variety of substituents on the aryl bromide such as nitro, cyano
使用PdCl(C 3 H 5)(dppb)/ KOAc催化剂,钯催化吡唑与芳基卤化物的直接芳基化反应显示出吡唑的C4和C5 C H键具有相似的反应性,而C3 C H键几乎不具有反应性,并一步一步即可获得各种4,5-二芳基吡唑类化合物。该C H键官能化反应容许芳基溴化物上的各种取代基,例如硝基,氰基,甲酰基,丙酰基,酯,氯,氟或三氟甲基。
1-cyano-pyrrolidine compounds as USP30 inhibitors
申请人:MISSION THERAPEUTICS LIMITED
公开号:US10343992B2
公开(公告)日:2019-07-09
The present invention relates to novel compounds and method for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 30 (USP30). The invention further relates to the use of DUB inhibitors in the treatment of conditions involving mitochondrial dysfunction and cancer. Compounds of the invention include compounds having the formula (II) or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, R8, R9, R10, R12, Z, Y and m are as defined herein.
本发明涉及新型化合物和去泛素化酶(DUB)抑制剂的制造方法。特别是,本发明涉及泛素 C 端水解酶 30(USP30)的抑制。本发明还涉及 DUB 抑制剂在治疗线粒体功能障碍和癌症方面的用途。本发明的化合物包括具有式(II)的化合物或其药学上可接受的盐,其中R1、R2、R3、R4、R5、R8、R9、R10、R12、Z、Y和m如本文所定义。
Efficient synthesis of 4-substituted pyrazole via microwave-promoted Suzuki cross-coupling reaction
作者:Hua Cheng、Qiong-You Wu、Fan Han、Guang-Fu Yang
DOI:10.1016/j.cclet.2014.03.013
日期:2014.5
Pyrazoles and their derivatives are important heterocycles found in nature and present in numerous bioactive compounds. In contrast to 3 or 5-aryl pyrazole, the preparation of 4-aryl pyrazole is fairly rare. Utilizing microwave irradiation, the synthesis of 4-substituted-arylpyrazole via Suzuki cross-coupling has been developed with a wide range of substrates. The remarkable advantages of this method are mild reaction conditions, simple operation, high yield, and short reaction time. Product structures were identified by MS, H-1 NMR, C-13 NMR, and elemental analysis. (C) 2014 Qiong-You Wu and Guang-Fu Yang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION