组成型雄烷受体(CAR)是异生物和内生代谢的关键调节剂。与孕烷X(PXR)和芳基碳氢化合物(AHR)受体一起,它被称为“异种生物受体”。人CAR的独特特性(例如其高结构活性,直接(配体结合域依赖性)和间接激活)都阻碍了直接选择性人CAR配体的发现。在本文中,我们报告了一组新的直接人类CAR激动剂,属于一组2-(3-甲氧基苯基)喹唑啉衍生物。与原型6-(4-氯苯基)咪唑并[2,1- b ] [1,3]噻唑-5-甲醛O相比,该化合物是人类CAR的更强活化剂。-(3,4-二氯苄基)肟(CITCO)。同时,三种最有效的配体是其他异生物或激素受体的极有效活化剂,即PXR,AHR和维生素D受体,它们调节主要的异生物代谢酶和外排转运蛋白。因此,新的CAR配体也可以被认为是构成第一类有效的泛异种生物受体配体,其可以用作潜在的解毒剂,从而促进异种生物或有毒化合物的整体代谢消除。
We developed an unprecedented iridium-catalyzed C−H activation/cyclization to synthesize isoquinoline compounds efficiently using ethyl benzimidate and N-alkoxyamides. This reaction has the advantages of wide substrate adaptability, short reaction times and no need for an inert atmosphere. In addition, some drug molecules smoothly converted into aminating reagents, reacted efficiently and afforded
A Comparative Investigation: Group 9 Cp*M(III)-Catalyzed Formal [4 + 2] Cycloaddition as an Atom-Economic Approach to Quinazolines
作者:Xiaoming Wang、Andreas Lerchen、Frank Glorius
DOI:10.1021/acs.orglett.6b00716
日期:2016.5.6
A comparative study on the catalytic activity of different group 9 [Cp*M(III)] complexes in the formal [4 + 2] cycloaddition of arenes with rarely explored free imines and dioxazolones for the construction of multisubstituted quinazolines is reported herein. This investigation revealed that the cobalt catalyst is uniquely suited to this transformation due to its strong Lewis acidity and high sensitivity