Synthesis of dihydropyrano[3,2-e]indoles as rotationally restricted phenolic analogs of 5-hydroxyindole—thermal Claisen approach versus gold catalysis
摘要:
The Claisen rearrangement/cyclization of 5-propargyloxyindoles (2) to afford dihydropyrano[3,2-e]indoles (3) as direct precursors to tetrahydropyrano[3,2-e]indoles (1, a rotationally restricted phenolic analog of 5-hydroxyindole) was examined using either refluxing bromobenzene (156 degrees C) or Au(+1) catalysis in refluxing dioxane (101 degrees C). This transformation was best effected using Au(+1) catalysis (i.e., tris[triphenylphosphinegold(I)] oxonium tetrafluoroborate) because this method required a lower reaction temperature and gave better yields when compared to the simple thermal reaction conditions (156 C). (C) 2010 Elsevier Ltd. All rights reserved.
Modulation of Neurogenesis By Melatoninergic Agents
申请人:Barlow Carrolee
公开号:US20080167363A1
公开(公告)日:2008-07-10
The present disclosure describes methods for treating diseases and conditions of the central and peripheral nervous system by stimulating or increasing neurogenesis. The disclosure includes compositions and methods based on use of melatonin or other melatoninergic agent, optionally in combination with one or more other neurogenic agents, to stimulate or activate the formation of new nerve cells.
[EN] MODULATION OF NEUROGENESIS BY MELATONINERGIC LIGANDS<br/>[FR] MODULATION DE LA NEUROGENÈSE PAR DES LIGANDS MÉLATONINERGIQUES
申请人:BRAINCELLS INC
公开号:WO2008083204A2
公开(公告)日:2008-07-10
[EN] The present disclosure describes methods for treating diseases and conditions of the central and peripheral nervous system by stimulating or increasing neurogenesis. The disclosure includes compositions and methods based on use of melatonin or other melatoninergic agent, optionally in combination with one or more other neurogenic agents, to stimulate or activate the formation of new nerve cells. [FR] La présente invention concerne des procédés de traitement de maladies et de conditions du système nerveux central et périphérique en stimulant ou en augmentant la neurogenèse. L'invention comprend des compositions et des procédés basés sur l'utilisation de mélatonine ou d'un autre agent mélatoninergique, éventuellement en association avec un ou plus des agents neurogénigues, afin de stimuler ou d'activer la formation de nouvelles cellules nerveuses.