Approach to the Synthesis of Indoline Derivatives from Diaryliodonium Salts
摘要:
An effective method of constructing the indoline moiety via intramolecular nucleophilic ring closure of a diaryliodonium salt is described. Diacetoxyiodoarene compounds (1a-1e) were converted into intermediate Koser's reagent and coupled with arylstannanes (7-10) to form diaryliodonium salts (11a-14e). Indo line compounds with different N-protecting groups, 15, 16, 17, and 18, were synthesized in higher yields by treating salts (11a-14e) with Cs2CO3 and TEMPO. Regardless of the electronic environment of five para-substituted iodoarenes and the natures of four N-protected arylstannane groups, the conversion proceeded well to afford corresponding indolines in yields of 72-84 and 70-84%, respectively.
[EN] DIAZEPINONE DERIVATIVES USEFUL FOR THE TREATMENT OF FRAGILE X SYNDROME, PARKINSONS OR REFLUX DISEASE<br/>[FR] DÉRIVÉS DE DIAZÉPINONE À UTILISER POUR LE TRAITEMENT DU SYNDROME DE L'X FRAGILE, DE LA MALADIE DE PARKINSON OU DE LA MALADIE DU REFLUX
申请人:NOVARTIS AG
公开号:WO2014030128A1
公开(公告)日:2014-02-27
The invention relates to compound of the formula (I) or a salt thereof, wherein the substituents are as defined in the specification; to its preparation, to its use as medicament and to medicaments comprising it.
combination of CuI and CsOAc was found to catalyze aryl amination under mild conditions. The reaction takes place at room temperature or at 90 °C with broad functional group compatibility. The intramolecular reaction was able to form five-, six-, and seven-membered rings with various protecting groups on the nitrogen atom. The scope of the intermolecular amination, as well as its applications to unsymmetrical
A unique combination of copper iodide and cesium acetate was found to mediate intramolecular amination of arylhalides under mild conditions. The reaction proceeds at room temperature with primary or N-benzyl amines and at moderately elevated temperatures with other amine derivatives. The reaction has been applied to the formation of 5-, 6-, and 7-membered rings. Remarkably, halogens at the meta-position
The invention relates to compound of the formula I
or a salt thereof, wherein the substituents are as defined in the specification; to its preparation, to its use as medicament and to medicaments comprising it.