AbstractSeveral dehydrorotenoids have been prepared by thermal condensation of 4‐ethoxycarbonyl‐3‐chromanon derivatives with 4‐hydroxybenzofurans and 2,2‐dimethyl‐5‐hydroxychroman. Hydrogenation of the dehydrorotenoids in the presence of Pd/BaSO4 afforded rotenoids.
AbstractSeveral dehydrorotenoids have been prepared by thermal condensation of 4‐ethoxycarbonyl‐3‐chromanon derivatives with 4‐hydroxybenzofurans and 2,2‐dimethyl‐5‐hydroxychroman. Hydrogenation of the dehydrorotenoids in the presence of Pd/BaSO4 afforded rotenoids.
The present invention relates to compounds of the formula I
1
and the pharmaceutically acceptable forms thereof; wherein X, Y, a, b, c, d, R
1
, R
2
, R
3
, R
4
and R
5
are as defined herein. Moreover, the present invention is also directed at pharmaceutical compositions comprising a compound of the formula I and a pharmaceutically acceptable carrier. Furthermore, the present invention is directed at methods of using the herein described compounds and compositions for treating or preventing a disorder or condition that can be treated or prevented by antagonizing the CCR1 receptor in a mammal.
Oxidative nucleophilic substitution of hydrogen in nitroarenes by silyl enol ethers
作者:Mieczysław Mąkosza、Marek Surowiec
DOI:10.1016/s0040-4020(03)01021-4
日期:2003.8
Enolates generated by treatment of silyl ketene acetals and enol ethers with fluoride ion sources add to nitroarenes to produce σH adducts that oxidize either with KMnO4 to give substitutednitroarenes or with dimethyldioxirane to give substituted phenols. In the latter case the oxidation results in replacement of the nitro group with a hydroxy group. It was shown that high effectiveness of these reactions
[EN] PIPERIDINE DERIVATIVES AND THEIR USE AS SELECTIVE INHIBITORS OF MIP-1ALPHA BINDING TO ITS RECEPTOR CCR1<br/>[FR] DERIVES DE PIPERIDINE ET LEUR UTILISATION COMME INHIBITEURS SELECTIFS DE LA LIAISON MIP-1ALPHA A SON RECEPTEUR CCR1
申请人:PFIZER PROD INC
公开号:WO2004009550A1
公开(公告)日:2004-01-29
A compound of the formula (I) wherein a, b, c R1, R2, R3, R4, R5, R6, R7, Q, W, Y, and Z are defined as above , useful as potent and selective inhibitors of MIP-1α (CCL3) binding to its receptor CCR1 found on inflammatory and immunomodulatory cells (preferably leukocytes and lymphocytes).
A compound of the formula
1
or the pharmaceutically acceptable salt thereof; wherein X, Y, a, b, c, d, R
1
, R
2
, R
3
and R
5
are as defined above useful to treat inflammation and other immune disorders.
The present invention relates to methods of using CCR1 antagonists as immunomodulatory agents. In particular, the methods relate to using compounds of the formula
1
or the pharmaceutically acceptable salt thereof; wherein X, Y, a, b, c, d, R
1
, R
2
, R
3
and R
5
are as defined herein.