A traceless directing group assisted Co-catalyzed C(sp2)–H carbonylation of ortho-arylanilines for the synthesis of free (NH)-phenanthridinones in metal-based-oxidant-free fashion was accomplished. This protocol employs diisopropyl azodicarboxylate as the CO source and oxygen as the sole oxidant, and provides good yields with various functional tolerance. The methodology has been applied for the total
Rhodium(I)-Catalyzed Aryl C–H Carboxylation of 2-Arylanilines with CO<sub>2</sub>
作者:Yuzhen Gao、Zhihua Cai、Shangda Li、Gang Li
DOI:10.1021/acs.orglett.9b01105
日期:2019.5.17
An unprecedented Rh(I)-catalyzed, amino-group-assisted C–H carboxylation of 2-arylanilines with CO2 under redox-neutral conditions has been developed. This reaction was promoted by a phosphine ligand with t-BuOK as the base and did not require the use of additional strong organometallic reagent. It enabled an efficient direct conversion of a broad range of 2-(hetero)arylanilines including electron-deficient
Expedited access to thieno[3,2-c]quinolin-4(5H)-ones and benzo[h]-1,6-naphthyridin-5(6H)-ones via a continuous flow photocyclization method
作者:Y. Fang、G. K. Tranmer
DOI:10.1039/c6ob02279k
日期:——
heterocycles via an intramolecular photochemical cyclization. Herein we report the first examples of the photochemically-induced generation of thieno[3,2-c]quinolin-4(5H)-ones, 16 examples, and benzo[h]-1,6-naphthyridin-5(6H)-ones, 6 examples. Overall, the continuous flow method provides access to complex heterocycles in two steps from commercially available starting materials in good yields and with
已经开发出一种单步连续流动方法,该方法可以通过分子内光化学环化作用快速进入复杂的杂环。在这里,我们报告的第一个例子是光化学诱导的thieno [3,2 - c ] quinolin-4(5 H)-ones,16个例子,和苯并[ h ] -1,6-naphthyridin-5(6 H)-一个,有6个例子。总体而言,连续流方法可从市售原料中分两步轻松获得复杂的杂环,且收率高,且原子效率高于传统的间歇反应。
PROTEIN KINASE MODULATORS
申请人:CHUA Peter C.
公开号:US20090239859A1
公开(公告)日:2009-09-24
The invention relates in part to molecules having certain biological activities that include, but are not limited to, inhibiting cell proliferation, modulating protein kinase activity and modulating polymerase activity. Molecules of the invention can modulate Pim kinase activity and/or FMS-like tyrosine kinase (Flt) activity. The invention also relates in part to methods for using such molecules.
The invention relates in part to molecules having certain biological activities that include, but are not limited to, inhibiting cell proliferation, and modulating protein kinase activity. Molecules of the invention can modulate casein kinase (CK) activity. The invention also relates in part to methods for using such molecules.