Novel and selective spiroindoline-based inhibitors of sky kinase
摘要:
We report the discovery of a novel series of spiroindoline-based inhibitors of Sky kinase that bind in the ATP-binding site and exhibit high levels of kinome selectivity through filling the Ala571-subpocket. These inhibitors exhibit moderate oral bioavailability in the rat due to low absorption across the gut wall. (C) 2011 Elsevier Ltd. All rights reserved.
TCCA-mediated oxidative rearrangement of tetrahydro-β-carbolines: facile access to spirooxindoles and the total synthesis of (±)-coerulescine and (±)-horsfiline
作者:Manda Sathish、Akash P. Sakla、Fabiane M. Nachtigall、Leonardo S. Santos、Nagula Shankaraiah
DOI:10.1039/d1ra02381k
日期:——
Multi-reactive centered reagents are beneficial in chemical synthesis due to their advantage of minimal material utilization and formation of less by-products. Trichloroisocyanuric acid (TCCA), a reagent with three reactive centers, was employed in the synthesis of spirooxindoles through the oxidative rearrangement of various N-protected tetrahydro-β-carbolines. In this protocol, low equivalents of
BICYCLIC HETEROAROMATIC DERIVATIVES USEFUL AS ANTICANCER AGENTS
申请人:Morris Joel
公开号:US20090111805A1
公开(公告)日:2009-04-30
The invention relates to compounds of the formula I:
and to pharmaceutically acceptable salts and solvates thereof, wherein X, Z, V, W, R
4
, R
5
, R
6
, R
7
, and ring B are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula I and to pharmaceutical compositions for treating such disorders which contain the compounds of formula I. The invention also relates to methods of preparing the compounds of formula I.
Tandem aza-Michael/spiro-ring closure sequence: access to a versatile scaffold and total synthesis of (±)-coerulescine
作者:Meral Görmen、Ronan Le Goff、Ata Martin Lawson、Adam Daïch、Sébastien Comesse
DOI:10.1016/j.tetlet.2013.02.047
日期:2013.4
The total synthesis of the alkaloid (+/-)-coerulescine is presented. The key step of this approach is an efficient tandem aza-Michael initiated ring closure (aza-MIRC) process between ethoxymethylene-oxindole and benzyl(2-bromoethyl)carbamate. The potency of the aza-MIRC reaction was first tested onto less challenging Michael acceptors and led in good yields to the corresponding N-Cbz alpha-alkoxy-beta-gem-disubstituted pyrrolidines. The resulting N-acyliminium precursor obtained from ethoxymethylidene-oxindole was efficiently converted in four steps, including 2 deprotections, into the targeted (+/-)-coerulescine. (C) 2013 Elsevier Ltd. All rights reserved.