Vinylogous N,N-dimethylaminomethylenation of 3-[(1-substituted)ethylidene]-oxindoles with N,N-dimethylformamide dimethylacetal
摘要:
An efficient stereoselective synthesis of various 3-(3-dimethylaminoprop-2-enylidene)oxindoles has been disclosed. The compounds were synthesized via a vinylogous N,N-dimethylaminomethylenation at the gamma-position of 3-[(1-substituted)ethylidene]oxindoles with DMF-DMA. (C) 2014 Elsevier Ltd. All rights reserved.
Stereoselective Synthesis of 3-Alkylideneoxindoles by Palladium-Catalyzed Cyclization Reaction of 2-(Alkynyl)aryl Isocyanates with Organoboron Reagents
A palladium(0)/monophosphine catalystpromotes a cyclization reaction of 2-(alkynyl)aryl isocyanates with organoboron reagents to produce stereodefined 3-alkylideneoxindoles. The alkynyl and isocyanato groups undergo oxidative cyclization with Pd(0) to form an oxapalladacycle intermediate. Subsequent transmetalation and reductive elimination afford the product.
The present invention provides compounds of formula (I),
as well as pharmaceutical acceptable salt thereof, wherein R
1
to R
7
have the significance given herein. The compounds are useful in the treatment of prophylaxis of diseases that are related to AMPK regulation.
[EN] ALKENE OXINDOLE DERIVATIVES AND THEIR USES TO TREAT OBESITY, DIABETES AND HYPERLIPIDEMIA<br/>[FR] DÉRIVÉS D'ALCÈNE-OXINDOLE ET LEURS UTILISATIONS POUR TRAITER L'OBÉSITÉ, LE DIABÈTE ET L'HYPERLIPIDÉMIE
申请人:HOFFMANN LA ROCHE
公开号:WO2011033099A1
公开(公告)日:2011-03-24
A compound of formula (I) as well as pharmaceutically acceptable salt thereof, wherein R1 to R7 have the significance given in claim 1, can be used as a medicament.
化合物的分子式(I)及其药学上可接受的盐,其中R1至R7具有权利要求1中给定的含义,可用作药物。
Advanced palladium free approach to the synthesis of substituted alkene oxindoles <i>via</i> aluminum-promoted Knoevenagel reaction
作者:Daria S. Novikova、Tatyana A. Grigoreva、Andrey A. Zolotarev、Alexander V. Garabadzhiu、Vyacheslav G. Tribulovich
DOI:10.1039/c8ra07576j
日期:——
A synthetic route for the synthesis of C24, as well as for the design of focused libraries of direct AMPK activators was developed based on a convergent strategy. The proposed scheme corresponds to the current trends in C–H bond functionalization. The use of aluminum isopropoxide for the Knoevenagel condensation of oxindole with benzophenones is a noticeable point of this work.
An efficientasymmetricvinylogousMannich (AVM) addition reaction of 3-alkenyl-2-oxindoles to α-fluoroalkyl aldimines has been developed. This reaction provided various optical active α-alkylidene-δ-amino-δ-fluoroalkyl oxindoles in excellent yields, complete γ-site regioselectivity, and excellent diastereoselectivities.