Synthesis and asymmetric resolution of a dopaminergic compound: 2-amino-5-methoxyindane
摘要:
The racemic synthesis and subsequent resolution of 2-amino-5-methoxyindane enantiomers were achieved starting from 5-bromoindan-2-ol in six steps with 38% total yield. The first step involved the substitution of the Br atom by using NaOMe in the presence of CuI to afford 5-methoxyindan-2-ol. The OH group of 5-methoxyindan-2-ol was converted into its mesylate ester, which was converted into the corresponding azide by reaction with sodium azide. The Pd C-catalyzed hydrogenation of the azide functional group in the presence of CHCI3, followed by neutralization of the amine hydrochloride salt with NaOH, furnished the rac-2-amino-5-methoxyindane. Next, rac-2-amino-5-methoxyindane was converted into its diastereomeric amide derivatives by reaction with (R)-mandeloyl chloride. The diastereomeric amide mixture was separated by recrystallization to give the (R,S)- and (R,R)-diastereomers. The absolute configuration of the (R,S)-isomer was determined by X-ray crystallography. The hydrolysis of these diastereomers gave (R)- and (S)-2-amino-5-methoxyindane with high enantiopurity. (C) 2016 Elsevier Ltd. All rights reserved.
[EN] POTENT SMALL MOLECULE INHIBITORS OF AUTOPHAGY, AND METHODS OF USE THEREOF [FR] INHIBITEURS DE L'AUTOPHAGIE À PETITES MOLÉCULES, EFFICACES, ET LEURS PROCÉDÉS D'UTILISATION
NOVEL COMPOUNDS AS ANTAGONISTS OR INVERSE AGONISTS FOR OPIOID RECEPTORS
申请人:Diaz Caroline Jean
公开号:US20100222345A1
公开(公告)日:2010-09-02
This invention relates to novel compounds which are antagonists or inverse agonists at one or more of the opioid receptors, to pharmaceutical compositions containing them, to processes for their preparation, and to their use in therapy.
METHOD OF TREATMENT USING NOVEL ANTAGONISTS OR INVERSE AGONISTS AT OPIOID RECEPTORS
申请人:IGNAR DIANE MICHELE
公开号:US20100113512A1
公开(公告)日:2010-05-06
A method of treatment using pharmaceutical compositions containing novel antagonists or inverse agonists at opioid receptors for the treatment of binge eating disorder, anorexia nervosa, bulimia nervosa, excess drug or alcohol use, or eating disorder not otherwise specified.
The present invention relates to novel compounds which are antagonist or inverse agonists at an opioid receptor. Such compounds are useful in the treatment of obesity and related diseases and/or conditions in mammals, particularly humans. Methods of making and using such compounds are also disclosed.
NOVEL COMPOUNDS AS ANTAGONISTS OR INVERSE AGONISTS AT OPIOID RECEPTORS
申请人:Cowan David John
公开号:US20110124559A1
公开(公告)日:2011-05-26
Novel compounds which are antagonists or inverse agonists at one or more of the opioid receptors, pharmaceutical compositions containing them, to processes for their preparation.