General procedure for the synthesis of spirocyclic 3-hydroxy- and 3-oxotetrahydrofurans containing carboand heterocyclic fragments
摘要:
Reactions of cyclopentanone, cyclohexanone, N-substituted pyrrolidin-3-one and piperidin-4-one, and tetrahydropyran-4-one with allyl bromide in the presence of zinc and ammonium chloride gave the corresponding geminal hydroxy allyl derivatives. Treatment of the latter with sodium periodate in the presence of sodium metabisulfite resulted in their oxidative cyclization with formation of oxa spirocyclic alcohols containing carbo- and heterocyclic fragments. Swern oxidation of the spiro alcohols afforded the corresponding ketones which were characterized as 2,4-dinitrophenylhydrazones.
OPIOID RECEPTOR LIGANDS AND METHODS OF USING AND MAKING SAME
申请人:Yamashita Dennis
公开号:US20120245181A1
公开(公告)日:2012-09-27
This application describes compounds that can act as opioid receptor ligands, which compounds can be used in the treatment of, for example, pain and pain related disorders.
Opioid Receptor Ligands And Methods Of Using And Making Same
申请人:Trevena, Inc.
公开号:US20150246904A1
公开(公告)日:2015-09-03
This application describes compounds that can act as opioid receptor ligands, which compounds can be used in the treatment of, for example, pain and pain related disorders.