Benzopyrans and benzoxepines, pharmaceutical compositions comprising them and preparation process
申请人:Merck Patent GmbH
公开号:US06596758B1
公开(公告)日:2003-07-22
The present invention relates to benzopyrans and benzoxepines of formula (I), wherein X, A, R1, R2 and (R)p have the meanings as given in claim 1, which can be used in the treatment of dislipidaemias, atherosclerosis and diabetes, to pharmaceutical compositions comprising them and to processes allowing the preparation of these compounds.
[EN] BENZOPYRANS AND BENZOXEPINES, PHARMACEUTICAL COMPOSITIONS COMPRISING THEM AND PREPARATION PROCESS<br/>[FR] BENZOPYRANES ET BENZOXEPINES PREPARATION PHARMACEUTIQUES LES INCLUANT ET LEUR PROCEDE D'OBTENTION
申请人:MERCK PATENT GMBH
公开号:WO2000039113A1
公开(公告)日:2000-07-06
The present invention relates to benzopyrans and benzoxepines of formula (I), wherein X, A, R1, R2 and (R)p have the meanings as given in claim 1, which can be used in the treatment of dislipidaemias, atherosclerosis and diabetes, to pharmaceutical compositions comprising them and to processes allowing the preparation of these compounds.
BENZOPYRANS AND BENZOXEPINES, PHARMACEUTICAL COMPOSITIONS COMPRISING THEM AND PREPARATION PROCESS
申请人:MERCK PATENT GmbH
公开号:EP1140893B1
公开(公告)日:2003-03-05
US6596758B1
申请人:——
公开号:US6596758B1
公开(公告)日:2003-07-22
A straightforward synthesis of functionalized 6<i>H</i>-benzo[<i>c</i>]chromenes from 3-alkenyl chromenes by intermolecular Diels–Alder/aromatization sequence
A new and metal-free approach to the synthesis of substituted 6H-benzo[c]chromenes has been developed. This three-step synthetic sequence starts from variously substituted salicylaldehydes and α,β-unsaturated carbonyl compounds to form the chromene core. The de novo ring-forming key step is based on a highly regioselective intermolecular Diels–Alder cycloaddition between 3-vinyl-2H-chromenes and methyl