α,α′-Dioxothiones part 2. Asymmetric Diels-Alder reactions of chiral non-racemic α,α′-dioxothiones
摘要:
Chiral non-racemic alpha,alpha'-dioxothiones 2a-g and 17 are obtained from chiral beta-ketoesters using the phthalimidesulfenyl chloride 1 as key reagent. The ability of these thiones to discriminate between the enantiotopic faces of several dienophiles has been evaluated, The best diastereoisomeric excesses (67-80%) were obtained when the alpha-acyl thiones were involved as electron-poor dienes in inverse electron demand Diels-Alder reactions with electron-rich styrenes as dienophiles. The possibility to obtain thiones bearing two,chiral groups as-well as the reactions where the alpha-acyl thiones 2 participate as dienophiles are also shown. (C) 1997 Elsevier Science Ltd.
[EN] PYRIMIDINONE DERIVATIVES AS THERAPEUTIC AGENTS AGAINST ACUTE AND CHRONIC INFLAMMATORY, ISCHAEMIC AND REMODELLING PROCESSES<br/>[FR] DERIVES DE PYRIMIDINONE UTILISES COMME AGENTS THERAPEUTIQUES CONTRE DES PROCESSUS INFLAMMATOIRES, ISCHEMIQUES ET DE REMODELAGE AIGUS ET CHRONIQUES
申请人:BAYER HEALTHCARE AG
公开号:WO2004024700A1
公开(公告)日:2004-03-25
The invention relates to novel heterocyclic derivatives, processes for their preparation, and their use in medicaments, especially for the treatment of chronic obstructive pulmonary diseases.
Pyrimidinone derivaties as therapeutic agents against acute and chronic inflammatory, ischaemic and remodelling processes
申请人:Gielen-Haertwig Heike
公开号:US20060160801A1
公开(公告)日:2006-07-20
The invention relates to novel heterocyclic derivatives, processes for their preparation, and their use in medicaments, especially for the treatment of chronic obstructive pulmonary diseases.
Pyrimidinone derivatives as therapeutic agents against acute and chronic inflammatory, ischaemic and remodelling processes
申请人:Bayer Healthcare AG
公开号:US07687510B2
公开(公告)日:2010-03-30
The invention relates to novel heterocyclic derivatives, processes for their preparation, and their use in medicaments, especially for the treatment of chronic obstructive pulmonary diseases.